Check out example codes for "c# int division to double". It will help you in understanding the concepts better.
Code Example 1
double num3 = (double)num1/(double)num2;
Code Example 2
(double)100/863
//0.11587485515643106
Code Example 3
(decimal)100/863
//0.1158748551564310544611819235
Code Example 4
double num3 = (double)num1/num2;
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