Did that first file with a problem get installed
If it is there, you can use ldd to get a better idea what its problem is:
If it didn't get installed, it is buried deep inside the .deb file you were trying to install, but you can get to it.
I don't recall exact details, but you can open a .deb file as an archive to pull out the nested archive inside it. Then open that archive to pull out files that would have been installed.
Next bit goes deeper into guesswork, but my guess is mimio is depending on some .so files that are part of gtk, and you have only the 64 bit version of those files installed and need to have also the 32 bit version.