Let's roll up our sleeves and solve this. We have 484 and we're going to multiply it by 80, essentially adding 484 to itself 80 times.
Step 1: 0 + 484 = 484
Step 2: 484 + 484 = 968
Step 3: 968 + 484 = 1452
Step 4: 1452 + 484 = 1936
Step 5: 1936 + 484 = 2420
Step 6: 2420 + 484 = 2904
Step 7: 2904 + 484 = 3388
Step 8: 3388 + 484 = 3872
Step 9: 3872 + 484 = 4356
Step 10: 4356 + 484 = 4840
Step 11: 4840 + 484 = 5324
Step 12: 5324 + 484 = 5808
Step 13: 5808 + 484 = 6292
Step 14: 6292 + 484 = 6776
Step 15: 6776 + 484 = 7260
Step 16: 7260 + 484 = 7744
Step 17: 7744 + 484 = 8228
Step 18: 8228 + 484 = 8712
Step 19: 8712 + 484 = 9196
Step 20: 9196 + 484 = 9680
Step 21: 9680 + 484 = 10164
Step 22: 10164 + 484 = 10648
Step 23: 10648 + 484 = 11132
Step 24: 11132 + 484 = 11616
Step 25: 11616 + 484 = 12100
Step 26: 12100 + 484 = 12584
Step 27: 12584 + 484 = 13068
Step 28: 13068 + 484 = 13552
Step 29: 13552 + 484 = 14036
Step 30: 14036 + 484 = 14520
Step 31: 14520 + 484 = 15004
Step 32: 15004 + 484 = 15488
Step 33: 15488 + 484 = 15972
Step 34: 15972 + 484 = 16456
Step 35: 16456 + 484 = 16940
Step 36: 16940 + 484 = 17424
Step 37: 17424 + 484 = 17908
Step 38: 17908 + 484 = 18392
Step 39: 18392 + 484 = 18876
Step 40: 18876 + 484 = 19360
Step 41: 19360 + 484 = 19844
Step 42: 19844 + 484 = 20328
Step 43: 20328 + 484 = 20812
Step 44: 20812 + 484 = 21296
Step 45: 21296 + 484 = 21780
Step 46: 21780 + 484 = 22264
Step 47: 22264 + 484 = 22748
Step 48: 22748 + 484 = 23232
Step 49: 23232 + 484 = 23716
Step 50: 23716 + 484 = 24200
Step 51: 24200 + 484 = 24684
Step 52: 24684 + 484 = 25168
Step 53: 25168 + 484 = 25652
Step 54: 25652 + 484 = 26136
Step 55: 26136 + 484 = 26620
Step 56: 26620 + 484 = 27104
Step 57: 27104 + 484 = 27588
Step 58: 27588 + 484 = 28072
Step 59: 28072 + 484 = 28556
Step 60: 28556 + 484 = 29040
Step 61: 29040 + 484 = 29524
Step 62: 29524 + 484 = 30008
Step 63: 30008 + 484 = 30492
Step 64: 30492 + 484 = 30976
Step 65: 30976 + 484 = 31460
Step 66: 31460 + 484 = 31944
Step 67: 31944 + 484 = 32428
Step 68: 32428 + 484 = 32912
Step 69: 32912 + 484 = 33396
Step 70: 33396 + 484 = 33880
Step 71: 33880 + 484 = 34364
Step 72: 34364 + 484 = 34848
Step 73: 34848 + 484 = 35332
Step 74: 35332 + 484 = 35816
Step 75: 35816 + 484 = 36300
Step 76: 36300 + 484 = 36784
Step 77: 36784 + 484 = 37268
Step 78: 37268 + 484 = 37752
Step 79: 37752 + 484 = 38236
Step 80: 38236 + 484 = 38720

So, 484*80 = 38720