OK, let's work through this together. We're starting with 453 and we're going to multiply it by 67, which means we add 453 to itself 67 times.
Step 1: 0 + 453 = 453
Step 2: 453 + 453 = 906
Step 3: 906 + 453 = 1359
Step 4: 1359 + 453 = 1812
Step 5: 1812 + 453 = 2265
Step 6: 2265 + 453 = 2718
Step 7: 2718 + 453 = 3171
Step 8: 3171 + 453 = 3624
Step 9: 3624 + 453 = 4077
Step 10: 4077 + 453 = 4530
Step 11: 4530 + 453 = 4983
Step 12: 4983 + 453 = 5436
Step 13: 5436 + 453 = 5889
Step 14: 5889 + 453 = 6342
Step 15: 6342 + 453 = 6795
Step 16: 6795 + 453 = 7248
Step 17: 7248 + 453 = 7701
Step 18: 7701 + 453 = 8154
Step 19: 8154 + 453 = 8607
Step 20: 8607 + 453 = 9060
Step 21: 9060 + 453 = 9513
Step 22: 9513 + 453 = 9966
Step 23: 9966 + 453 = 10419
Step 24: 10419 + 453 = 10872
Step 25: 10872 + 453 = 11325
Step 26: 11325 + 453 = 11778
Step 27: 11778 + 453 = 12231
Step 28: 12231 + 453 = 12684
Step 29: 12684 + 453 = 13137
Step 30: 13137 + 453 = 13590
Step 31: 13590 + 453 = 14043
Step 32: 14043 + 453 = 14496
Step 33: 14496 + 453 = 14949
Step 34: 14949 + 453 = 15402
Step 35: 15402 + 453 = 15855
Step 36: 15855 + 453 = 16308
Step 37: 16308 + 453 = 16761
Step 38: 16761 + 453 = 17214
Step 39: 17214 + 453 = 17667
Step 40: 17667 + 453 = 18120
Step 41: 18120 + 453 = 18573
Step 42: 18573 + 453 = 19026
Step 43: 19026 + 453 = 19479
Step 44: 19479 + 453 = 19932
Step 45: 19932 + 453 = 20385
Step 46: 20385 + 453 = 20838
Step 47: 20838 + 453 = 21291
Step 48: 21291 + 453 = 21744
Step 49: 21744 + 453 = 22197
Step 50: 22197 + 453 = 22650
Step 51: 22650 + 453 = 23103
Step 52: 23103 + 453 = 23556
Step 53: 23556 + 453 = 24009
Step 54: 24009 + 453 = 24462
Step 55: 24462 + 453 = 24915
Step 56: 24915 + 453 = 25368
Step 57: 25368 + 453 = 25821
Step 58: 25821 + 453 = 26274
Step 59: 26274 + 453 = 26727
Step 60: 26727 + 453 = 27180
Step 61: 27180 + 453 = 27633
Step 62: 27633 + 453 = 28086
Step 63: 28086 + 453 = 28539
Step 64: 28539 + 453 = 28992
Step 65: 28992 + 453 = 29445
Step 66: 29445 + 453 = 29898
Step 67: 29898 + 453 = 30351

So, 453*67 = 30351