It is not entirely clear what you are asking, but I'm guessing that you want to know how to compute a, b, c, d, e
such that N = a * 85^4 + b * 85^3 + c * 85^2 + d * 85 + e
.
The answer is:
- Take N remainder
85
to give youe
. - Divide N by
85
. - Repeat for
d
,c
and so on.