Let's get this math done. We have 173 and we're going to multiply it by 13. This is the same as taking 173 and adding it to itself 13 times.
Step 1: 0 + 173 = 173
Step 2: 173 + 173 = 346
Step 3: 346 + 173 = 519
Step 4: 519 + 173 = 692
Step 5: 692 + 173 = 865
Step 6: 865 + 173 = 1038
Step 7: 1038 + 173 = 1211
Step 8: 1211 + 173 = 1384
Step 9: 1384 + 173 = 1557
Step 10: 1557 + 173 = 1730
Step 11: 1730 + 173 = 1903
Step 12: 1903 + 173 = 2076
Step 13: 2076 + 173 = 2249

So, 173*13 = 2249