CTR -negotiable item cashed and loan pmt made

I have a question on how to accurately complete Part II of the CTR. Customer brought in a 12,000 cashier's check. Customer makes a $500 loan payment, and then takes the rest as a cash out.
The only way I can figure out how to fill in Part II is to note a 12,000 cash out, 500 cash in, referencing loan number. However, this is not how the teller ran the transaction. The teller ran everything as one transaction: 12,000 cashed check, 500 loan payment, 11,500 cash out.
What is the correct way to complete Part II?

I think I have my own answer - just don't even notate the loan payment on the CTR, since it wasn't done in cash. Would that be accurate?

Negitiable instrument cashed, $11,500 cash out.

Thank-you!!