How to split large numbers?

Question

I have a large number (unsigned integer) stored in 2 variables (as you can see, with high and low part of the number):

unsigned long long int high;
unsigned long long int low;

I know how to add or subtract some other kind of variable.

But I need to divide such numbers. How to do it? I know I can subtract N times, but maybe there are better solutions .; -)

Language: C

Answer 1

Yes. This will be due to changes, and I do not recommend doing it in C. This is one of those rare examples where assembler can still prove its worth by easily making things work hundreds of times faster (And I don't think I'm exaggerating this. )

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Answer 2

, GNU MP BigNum?

Answer 3

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Answer 6

128- . GnuCash: Math128.

Answer 7

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Answer 8

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Answer 9

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