Sure thing! We've got 892 and we're gonna multiply it by 129. That's the same as adding 892 to itself 129 times.
Step 1: 0 + 892 = 892
Step 2: 892 + 892 = 1784
Step 3: 1784 + 892 = 2676
Step 4: 2676 + 892 = 3568
Step 5: 3568 + 892 = 4460
Step 6: 4460 + 892 = 5352
Step 7: 5352 + 892 = 6244
Step 8: 6244 + 892 = 7136
Step 9: 7136 + 892 = 8028
Step 10: 8028 + 892 = 8920
Step 11: 8920 + 892 = 9812
Step 12: 9812 + 892 = 10704
Step 13: 10704 + 892 = 11596
Step 14: 11596 + 892 = 12488
Step 15: 12488 + 892 = 13380
Step 16: 13380 + 892 = 14272
Step 17: 14272 + 892 = 15164
Step 18: 15164 + 892 = 16056
Step 19: 16056 + 892 = 16948
Step 20: 16948 + 892 = 17840
Step 21: 17840 + 892 = 18732
Step 22: 18732 + 892 = 19624
Step 23: 19624 + 892 = 20516
Step 24: 20516 + 892 = 21408
Step 25: 21408 + 892 = 22300
Step 26: 22300 + 892 = 23192
Step 27: 23192 + 892 = 24084
Step 28: 24084 + 892 = 24976
Step 29: 24976 + 892 = 25868
Step 30: 25868 + 892 = 26760
Step 31: 26760 + 892 = 27652
Step 32: 27652 + 892 = 28544
Step 33: 28544 + 892 = 29436
Step 34: 29436 + 892 = 30328
Step 35: 30328 + 892 = 31220
Step 36: 31220 + 892 = 32112
Step 37: 32112 + 892 = 33004
Step 38: 33004 + 892 = 33896
Step 39: 33896 + 892 = 34788
Step 40: 34788 + 892 = 35680
Step 41: 35680 + 892 = 36572
Step 42: 36572 + 892 = 37464
Step 43: 37464 + 892 = 38356
Step 44: 38356 + 892 = 39248
Step 45: 39248 + 892 = 40140
Step 46: 40140 + 892 = 41032
Step 47: 41032 + 892 = 41924
Step 48: 41924 + 892 = 42816
Step 49: 42816 + 892 = 43708
Step 50: 43708 + 892 = 44600
Step 51: 44600 + 892 = 45492
Step 52: 45492 + 892 = 46384
Step 53: 46384 + 892 = 47276
Step 54: 47276 + 892 = 48168
Step 55: 48168 + 892 = 49060
Step 56: 49060 + 892 = 49952
Step 57: 49952 + 892 = 50844
Step 58: 50844 + 892 = 51736
Step 59: 51736 + 892 = 52628
Step 60: 52628 + 892 = 53520
Step 61: 53520 + 892 = 54412
Step 62: 54412 + 892 = 55304
Step 63: 55304 + 892 = 56196
Step 64: 56196 + 892 = 57088
Step 65: 57088 + 892 = 57980
Step 66: 57980 + 892 = 58872
Step 67: 58872 + 892 = 59764
Step 68: 59764 + 892 = 60656
Step 69: 60656 + 892 = 61548
Step 70: 61548 + 892 = 62440
Step 71: 62440 + 892 = 63332
Step 72: 63332 + 892 = 64224
Step 73: 64224 + 892 = 65116
Step 74: 65116 + 892 = 66008
Step 75: 66008 + 892 = 66900
Step 76: 66900 + 892 = 67792
Step 77: 67792 + 892 = 68684
Step 78: 68684 + 892 = 69576
Step 79: 69576 + 892 = 70468
Step 80: 70468 + 892 = 71360
Step 81: 71360 + 892 = 72252
Step 82: 72252 + 892 = 73144
Step 83: 73144 + 892 = 74036
Step 84: 74036 + 892 = 74928
Step 85: 74928 + 892 = 75820
Step 86: 75820 + 892 = 76712
Step 87: 76712 + 892 = 77604
Step 88: 77604 + 892 = 78496
Step 89: 78496 + 892 = 79388
Step 90: 79388 + 892 = 80280
Step 91: 80280 + 892 = 81172
Step 92: 81172 + 892 = 82064
Step 93: 82064 + 892 = 82956
Step 94: 82956 + 892 = 83848
Step 95: 83848 + 892 = 84740
Step 96: 84740 + 892 = 85632
Step 97: 85632 + 892 = 86524
Step 98: 86524 + 892 = 87416
Step 99: 87416 + 892 = 88308
Step 100: 88308 + 892 = 89200
Step 101: 89200 + 892 = 90092
Step 102: 90092 + 892 = 90984
Step 103: 90984 + 892 = 91876
Step 104: 91876 + 892 = 92768
Step 105: 92768 + 892 = 93660
Step 106: 93660 + 892 = 94552
Step 107: 94552 + 892 = 95444
Step 108: 95444 + 892 = 96336
Step 109: 96336 + 892 = 97228
Step 110: 97228 + 892 = 98120
Step 111: 98120 + 892 = 99012
Step 112: 99012 + 892 = 99904
Step 113: 99904 + 892 = 100796
Step 114: 100796 + 892 = 101688
Step 115: 101688 + 892 = 102580
Step 116: 102580 + 892 = 103472
Step 117: 103472 + 892 = 104364
Step 118: 104364 + 892 = 105256
Step 119: 105256 + 892 = 106148
Step 120: 106148 + 892 = 107040
Step 121: 107040 + 892 = 107932
Step 122: 107932 + 892 = 108824
Step 123: 108824 + 892 = 109716
Step 124: 109716 + 892 = 110608
Step 125: 110608 + 892 = 111500
Step 126: 111500 + 892 = 112392
Step 127: 112392 + 892 = 113284
Step 128: 113284 + 892 = 114176
Step 129: 114176 + 892 = 115068

So, 892*129 = 115068