Let's roll up our sleeves and solve this. We have 112 and we're going to multiply it by 13, essentially adding 112 to itself 13 times.
Step 1: 0 + 112 = 112
Step 2: 112 + 112 = 224
Step 3: 224 + 112 = 336
Step 4: 336 + 112 = 448
Step 5: 448 + 112 = 560
Step 6: 560 + 112 = 672
Step 7: 672 + 112 = 784
Step 8: 784 + 112 = 896
Step 9: 896 + 112 = 1008
Step 10: 1008 + 112 = 1120
Step 11: 1120 + 112 = 1232
Step 12: 1232 + 112 = 1344
Step 13: 1344 + 112 = 1456

So, 112*13 = 1456