I really want to play on my android phone. I know there are DOS and C64 emulators, but I can't figure out how to make it all work. Tried watching YouTube, but still can't get things right. Can anyone walk me through this?

You can get Magic Dosbox from Play Store.
Then install your game on your pc, and transfer the game folder to your phone's storage. On my phone the path is /sdcard/.MagicBox/Games/.
Open the app and add a new game. The instruction is very detailed.
If you are tired of configuring the game's setting, you can just copy the GOG's settings from both the dosbox_por.conf and dosbox_por_single.conf (take Pool of Radiance as an example) to the "expert command" in the configuration panel.

More settings available after you start the game. Just read the instruction and test them by yourself.