Answered at last by Alerissa Nestor on another board. It's too obvious I guess. here is the answer from Alerissa;

"The trick is to follow the instructions literally, but using Roman numerals. Divide 101 (CI) by 50 (L) (i.e. put "L" between "C" and "I") = CLI Add the right cipher (cipher = zero) to the line and you shall get CLIO, 1 of the 9 Muses.

One point from Alexander House."