[Nyororin]

My guess isn`t 56, but 5, 6 (like 5 or 6). It would make much more sense in the context. About 5 or 6 years makes sense, but about 56 years sounds strange.

So, "It had been about 5 or 6 years since doing animation, so I was a bit hesitant." (substitute he for I if they`re talking about someone else.)

Second one is "Delivered a dozen 65yen cans of Coca Cola bought at Rogers to Tokuhiro Matsubara in the staff room."

The IN can mean hand in, or it can also mean started. Depends on the context, and I can`t tell from that one sentence.