Let's roll up our sleeves and solve this. We have 464 and we're going to multiply it by 20, essentially adding 464 to itself 20 times.
Step 1: 0 + 464 = 464
Step 2: 464 + 464 = 928
Step 3: 928 + 464 = 1392
Step 4: 1392 + 464 = 1856
Step 5: 1856 + 464 = 2320
Step 6: 2320 + 464 = 2784
Step 7: 2784 + 464 = 3248
Step 8: 3248 + 464 = 3712
Step 9: 3712 + 464 = 4176
Step 10: 4176 + 464 = 4640
Step 11: 4640 + 464 = 5104
Step 12: 5104 + 464 = 5568
Step 13: 5568 + 464 = 6032
Step 14: 6032 + 464 = 6496
Step 15: 6496 + 464 = 6960
Step 16: 6960 + 464 = 7424
Step 17: 7424 + 464 = 7888
Step 18: 7888 + 464 = 8352
Step 19: 8352 + 464 = 8816
Step 20: 8816 + 464 = 9280

So, 464*20 = 9280