You are quite welcome @johndoer123 ! Yeah that is quite the root there. If you have access to compressed air or a pressure washer you can use either/or to remove all the soil around the root (or stump) without having to do a bunch of digging.
Ideally an 'air spade' is what you want but they can be pricey. You can fabricate one also so maybe look into them. Here is an example of an air spade:
Cheers!