Packaged contents should be less then 1GB since most Android devices cannot load contents more than 1GB package.
We recommend compressing each content or use the option “internet” instead of “packaged”.

You can publish 100MB+ Android package by using “Use APK Expansion Files” option in Publish > Advanced Options > Platform Settings.

Read following instruction how to upload APK + OBB.
https://support.google.com/googleplay/android-developer/answer/2481797?hl=en