Alright, let's solve this math problem step by step. First, we have the number 936. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 13. So, we're going to take the number 936 and add it to itself 13 times.
Step 1: 0 + 936 = 936
Step 2: 936 + 936 = 1872
Step 3: 1872 + 936 = 2808
Step 4: 2808 + 936 = 3744
Step 5: 3744 + 936 = 4680
Step 6: 4680 + 936 = 5616
Step 7: 5616 + 936 = 6552
Step 8: 6552 + 936 = 7488
Step 9: 7488 + 936 = 8424
Step 10: 8424 + 936 = 9360
Step 11: 9360 + 936 = 10296
Step 12: 10296 + 936 = 11232
Step 13: 11232 + 936 = 12168

So, 936*13 = 12168