Convert 2371.625 base8 to base16
An easy way to go from base8 to base16 is to use binary, first in groups of 3 and then in groups of 4 bits:
010 011 111 001.110 010 101
--> 0100 1111 1001.1100 1010 1000
= 4F9.CA7
The last digit depends on how you account for the missing bits at the end.
If you're on a unix system, fire up bc and use obase=16, ibase=8