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Doing modular division when denominator and modulus not coprime
I looked for it and got a source: Link
But this method may not work when the denominator is a multiple of modulus.
For example, (8/8) % 4 should be 1, but applying this approach it gets gcd(4, 8) = 4 and hence find ((8/4)/(8/4))%(4/4) which results in 0.
Similarly for (80/8) % 4 should be 2 but this results in 0.
So what can be a generalized approach towards this?
