Math (Division) Step By Step
v4.0.21 · 30.4 MB · code 78
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File information
UpdatedFeb 8, 2026
PublishedApr 14, 2021
Packagecom.digitalduwaji.mathstep_by_step
Versionv4.0.21 (78)
Size30.4 MB
MD587d396187be0713c71b5cb8bc919eae2
Min SDK29
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1E9:62:13:18:6D:5A:B0:5D:AA:1B:08:D0:3A:39:62:13:E0:11:C5:2A
SignerCN=marwan duwaji, OU=none, O=digital duwaji, L=Wayne, ST=NJ, C=US
Total downloads500,000
This version500,000
DeveloperDigital D, LLC
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2026-02-08
- Signature SHA1 E9:62:13:18:6D:5A:B0:5D:AA:1B:08:D0:3A:39:62:13:E0:11:C5:2A
- File MD5 87d396187be0713c71b5cb8bc919eae2
How to install Math (Division) Step By Step v4.0.21 on Android 10+
Takes about 2 minutes. You'll need roughly 30.4 MB of free storage.
- Grab com.digitalduwaji.mathstep_by_step_78.apk — hit the Download button above (30.4 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 87d396187be0713c…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.digitalduwaji.mathstep_by_step_78.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=marwan duwaji, OU=none, O=digital duwaji, L=Wayne, ST=NJ, C=US. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Math (Division) Step By Step — tap Open on the install screen, or find the Math (Division) Step By Step icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Math (Division) Step By Step
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 10 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.