Without delay, let's solve this. We've got 276 and we will be multiplying it by 73, that is, adding 276 to itself 73 times.
Step 1: 0 + 276 = 276
Step 2: 276 + 276 = 552
Step 3: 552 + 276 = 828
Step 4: 828 + 276 = 1104
Step 5: 1104 + 276 = 1380
Step 6: 1380 + 276 = 1656
Step 7: 1656 + 276 = 1932
Step 8: 1932 + 276 = 2208
Step 9: 2208 + 276 = 2484
Step 10: 2484 + 276 = 2760
Step 11: 2760 + 276 = 3036
Step 12: 3036 + 276 = 3312
Step 13: 3312 + 276 = 3588
Step 14: 3588 + 276 = 3864
Step 15: 3864 + 276 = 4140
Step 16: 4140 + 276 = 4416
Step 17: 4416 + 276 = 4692
Step 18: 4692 + 276 = 4968
Step 19: 4968 + 276 = 5244
Step 20: 5244 + 276 = 5520
Step 21: 5520 + 276 = 5796
Step 22: 5796 + 276 = 6072
Step 23: 6072 + 276 = 6348
Step 24: 6348 + 276 = 6624
Step 25: 6624 + 276 = 6900
Step 26: 6900 + 276 = 7176
Step 27: 7176 + 276 = 7452
Step 28: 7452 + 276 = 7728
Step 29: 7728 + 276 = 8004
Step 30: 8004 + 276 = 8280
Step 31: 8280 + 276 = 8556
Step 32: 8556 + 276 = 8832
Step 33: 8832 + 276 = 9108
Step 34: 9108 + 276 = 9384
Step 35: 9384 + 276 = 9660
Step 36: 9660 + 276 = 9936
Step 37: 9936 + 276 = 10212
Step 38: 10212 + 276 = 10488
Step 39: 10488 + 276 = 10764
Step 40: 10764 + 276 = 11040
Step 41: 11040 + 276 = 11316
Step 42: 11316 + 276 = 11592
Step 43: 11592 + 276 = 11868
Step 44: 11868 + 276 = 12144
Step 45: 12144 + 276 = 12420
Step 46: 12420 + 276 = 12696
Step 47: 12696 + 276 = 12972
Step 48: 12972 + 276 = 13248
Step 49: 13248 + 276 = 13524
Step 50: 13524 + 276 = 13800
Step 51: 13800 + 276 = 14076
Step 52: 14076 + 276 = 14352
Step 53: 14352 + 276 = 14628
Step 54: 14628 + 276 = 14904
Step 55: 14904 + 276 = 15180
Step 56: 15180 + 276 = 15456
Step 57: 15456 + 276 = 15732
Step 58: 15732 + 276 = 16008
Step 59: 16008 + 276 = 16284
Step 60: 16284 + 276 = 16560
Step 61: 16560 + 276 = 16836
Step 62: 16836 + 276 = 17112
Step 63: 17112 + 276 = 17388
Step 64: 17388 + 276 = 17664
Step 65: 17664 + 276 = 17940
Step 66: 17940 + 276 = 18216
Step 67: 18216 + 276 = 18492
Step 68: 18492 + 276 = 18768
Step 69: 18768 + 276 = 19044
Step 70: 19044 + 276 = 19320
Step 71: 19320 + 276 = 19596
Step 72: 19596 + 276 = 19872
Step 73: 19872 + 276 = 20148

So, 276*73 = 20148