In the books....not canon I know....he was an admiral..head of starfleet i believe...
He was supposed to be a good 5 years younger thanSulu so not a shock...
Plus.there was captain Chekov in st v albeit as a decoy
Isn't there a reference to 'Admiral' Chekov somewhere in TNG or DS9?
I'm sure I heard that somewhere and I don't read that many Trek books... too many contradictory directions.
And as for the OP question, I humbly submit this:
Navy Security: "Name..."
Chekov: "My name?"
Navy Security (with sarcasm): "No, My name..."
Chekov: "I do not know your name!"
just who you want commanding hundreds of lives...