OK, let's crack this. We're given 93 and our task is to multiply it by 13. Essentially, we'll be adding 93 to itself 13 times.
Step 1: 0 + 93 = 93
Step 2: 93 + 93 = 186
Step 3: 186 + 93 = 279
Step 4: 279 + 93 = 372
Step 5: 372 + 93 = 465
Step 6: 465 + 93 = 558
Step 7: 558 + 93 = 651
Step 8: 651 + 93 = 744
Step 9: 744 + 93 = 837
Step 10: 837 + 93 = 930
Step 11: 930 + 93 = 1023
Step 12: 1023 + 93 = 1116
Step 13: 1116 + 93 = 1209

So, 93*13 = 1209