Let's get this math done. We have 867 and we're going to multiply it by 124. This is the same as taking 867 and adding it to itself 124 times.
Step 1: 0 + 867 = 867
Step 2: 867 + 867 = 1734
Step 3: 1734 + 867 = 2601
Step 4: 2601 + 867 = 3468
Step 5: 3468 + 867 = 4335
Step 6: 4335 + 867 = 5202
Step 7: 5202 + 867 = 6069
Step 8: 6069 + 867 = 6936
Step 9: 6936 + 867 = 7803
Step 10: 7803 + 867 = 8670
Step 11: 8670 + 867 = 9537
Step 12: 9537 + 867 = 10404
Step 13: 10404 + 867 = 11271
Step 14: 11271 + 867 = 12138
Step 15: 12138 + 867 = 13005
Step 16: 13005 + 867 = 13872
Step 17: 13872 + 867 = 14739
Step 18: 14739 + 867 = 15606
Step 19: 15606 + 867 = 16473
Step 20: 16473 + 867 = 17340
Step 21: 17340 + 867 = 18207
Step 22: 18207 + 867 = 19074
Step 23: 19074 + 867 = 19941
Step 24: 19941 + 867 = 20808
Step 25: 20808 + 867 = 21675
Step 26: 21675 + 867 = 22542
Step 27: 22542 + 867 = 23409
Step 28: 23409 + 867 = 24276
Step 29: 24276 + 867 = 25143
Step 30: 25143 + 867 = 26010
Step 31: 26010 + 867 = 26877
Step 32: 26877 + 867 = 27744
Step 33: 27744 + 867 = 28611
Step 34: 28611 + 867 = 29478
Step 35: 29478 + 867 = 30345
Step 36: 30345 + 867 = 31212
Step 37: 31212 + 867 = 32079
Step 38: 32079 + 867 = 32946
Step 39: 32946 + 867 = 33813
Step 40: 33813 + 867 = 34680
Step 41: 34680 + 867 = 35547
Step 42: 35547 + 867 = 36414
Step 43: 36414 + 867 = 37281
Step 44: 37281 + 867 = 38148
Step 45: 38148 + 867 = 39015
Step 46: 39015 + 867 = 39882
Step 47: 39882 + 867 = 40749
Step 48: 40749 + 867 = 41616
Step 49: 41616 + 867 = 42483
Step 50: 42483 + 867 = 43350
Step 51: 43350 + 867 = 44217
Step 52: 44217 + 867 = 45084
Step 53: 45084 + 867 = 45951
Step 54: 45951 + 867 = 46818
Step 55: 46818 + 867 = 47685
Step 56: 47685 + 867 = 48552
Step 57: 48552 + 867 = 49419
Step 58: 49419 + 867 = 50286
Step 59: 50286 + 867 = 51153
Step 60: 51153 + 867 = 52020
Step 61: 52020 + 867 = 52887
Step 62: 52887 + 867 = 53754
Step 63: 53754 + 867 = 54621
Step 64: 54621 + 867 = 55488
Step 65: 55488 + 867 = 56355
Step 66: 56355 + 867 = 57222
Step 67: 57222 + 867 = 58089
Step 68: 58089 + 867 = 58956
Step 69: 58956 + 867 = 59823
Step 70: 59823 + 867 = 60690
Step 71: 60690 + 867 = 61557
Step 72: 61557 + 867 = 62424
Step 73: 62424 + 867 = 63291
Step 74: 63291 + 867 = 64158
Step 75: 64158 + 867 = 65025
Step 76: 65025 + 867 = 65892
Step 77: 65892 + 867 = 66759
Step 78: 66759 + 867 = 67626
Step 79: 67626 + 867 = 68493
Step 80: 68493 + 867 = 69360
Step 81: 69360 + 867 = 70227
Step 82: 70227 + 867 = 71094
Step 83: 71094 + 867 = 71961
Step 84: 71961 + 867 = 72828
Step 85: 72828 + 867 = 73695
Step 86: 73695 + 867 = 74562
Step 87: 74562 + 867 = 75429
Step 88: 75429 + 867 = 76296
Step 89: 76296 + 867 = 77163
Step 90: 77163 + 867 = 78030
Step 91: 78030 + 867 = 78897
Step 92: 78897 + 867 = 79764
Step 93: 79764 + 867 = 80631
Step 94: 80631 + 867 = 81498
Step 95: 81498 + 867 = 82365
Step 96: 82365 + 867 = 83232
Step 97: 83232 + 867 = 84099
Step 98: 84099 + 867 = 84966
Step 99: 84966 + 867 = 85833
Step 100: 85833 + 867 = 86700
Step 101: 86700 + 867 = 87567
Step 102: 87567 + 867 = 88434
Step 103: 88434 + 867 = 89301
Step 104: 89301 + 867 = 90168
Step 105: 90168 + 867 = 91035
Step 106: 91035 + 867 = 91902
Step 107: 91902 + 867 = 92769
Step 108: 92769 + 867 = 93636
Step 109: 93636 + 867 = 94503
Step 110: 94503 + 867 = 95370
Step 111: 95370 + 867 = 96237
Step 112: 96237 + 867 = 97104
Step 113: 97104 + 867 = 97971
Step 114: 97971 + 867 = 98838
Step 115: 98838 + 867 = 99705
Step 116: 99705 + 867 = 100572
Step 117: 100572 + 867 = 101439
Step 118: 101439 + 867 = 102306
Step 119: 102306 + 867 = 103173
Step 120: 103173 + 867 = 104040
Step 121: 104040 + 867 = 104907
Step 122: 104907 + 867 = 105774
Step 123: 105774 + 867 = 106641
Step 124: 106641 + 867 = 107508

So, 867*124 = 107508