Decimal (fraction) number manipulation

I want to convert the result of division to milliseconds and nanoseconds so for example;

45.0 / 8.0 = 5.625 converted to 5 ms 625000 ns

35.0 / 6.0 = 5.8333(recurring) converted to 5 ms 833333 ns

I've hacked together a terribly cumbersome solution that involves converting to a string, parsing then formatting. Surely there is a more elegant/higher performance solution involving a method call or two that I've missed in one of the APIs?

[464 byte] By [cno-81a] at [2007-10-3 4:28:55]