There is no function to calculate mod on simple calculator even though on Scientific Calculator. I will show you how to calculate mod on the calculator in simple step.
Step 1: eg. 1765 % 12 = ?
First divide the original number (i.e 1765) by mod number (i.e 12) 1765 / 12 = 147.0833
Step 2: Now take the integer part of the answer (i.e 147) and multiply with divisor (i.e 12) 147 * 12 = 1764
Step 3: Now Subtract the above step answer (i.e 1764) from dividend (i.e 1765) 1765-1764=1
ans 1. This your final answer. 1765 % 12 = 1