[supercat]

Works for multiplication too

Perhaps you should explain in more detail, since your example seems 147,100 short.

BTW, there is a cool trick to division I discovered, which is of limitted usefulness when doing maths by hand, but makes division fundamentally parallelizable. I wonder if PGP or other such programs use any such technique?

[antaresequity]

Your right...I went to fast

Basically its like this...simpler example

87 x 34=

80 x 30
80 x 4
7 x 30
7 x 4

or 2400 320 210 28 =

the idea is to break the it into memory manageable modules

Sorry