I think the operation is


z = Q * modInv(R, N) % N

1.  Modular Inverse R
2.  Q multiply Modular Inverse R
3.  Total Modular N
4.  the result is z

My understanding divided in the Elliptic Curve is not mean  10/2=5 is not divided by normal math
divided in Elliptic Curve = multiply the value with Inverse value  and the result is Modular with N

It is correct or not?
Did I understand wrong?