Sure thing! We've got 737 and we're gonna multiply it by 20. That's the same as adding 737 to itself 20 times.
Step 1: 0 + 737 = 737
Step 2: 737 + 737 = 1474
Step 3: 1474 + 737 = 2211
Step 4: 2211 + 737 = 2948
Step 5: 2948 + 737 = 3685
Step 6: 3685 + 737 = 4422
Step 7: 4422 + 737 = 5159
Step 8: 5159 + 737 = 5896
Step 9: 5896 + 737 = 6633
Step 10: 6633 + 737 = 7370
Step 11: 7370 + 737 = 8107
Step 12: 8107 + 737 = 8844
Step 13: 8844 + 737 = 9581
Step 14: 9581 + 737 = 10318
Step 15: 10318 + 737 = 11055
Step 16: 11055 + 737 = 11792
Step 17: 11792 + 737 = 12529
Step 18: 12529 + 737 = 13266
Step 19: 13266 + 737 = 14003
Step 20: 14003 + 737 = 14740

So, 737*20 = 14740