OK, let's crack this. We're given 689 and our task is to multiply it by 156. Essentially, we'll be adding 689 to itself 156 times.
Step 1: 0 + 689 = 689
Step 2: 689 + 689 = 1378
Step 3: 1378 + 689 = 2067
Step 4: 2067 + 689 = 2756
Step 5: 2756 + 689 = 3445
Step 6: 3445 + 689 = 4134
Step 7: 4134 + 689 = 4823
Step 8: 4823 + 689 = 5512
Step 9: 5512 + 689 = 6201
Step 10: 6201 + 689 = 6890
Step 11: 6890 + 689 = 7579
Step 12: 7579 + 689 = 8268
Step 13: 8268 + 689 = 8957
Step 14: 8957 + 689 = 9646
Step 15: 9646 + 689 = 10335
Step 16: 10335 + 689 = 11024
Step 17: 11024 + 689 = 11713
Step 18: 11713 + 689 = 12402
Step 19: 12402 + 689 = 13091
Step 20: 13091 + 689 = 13780
Step 21: 13780 + 689 = 14469
Step 22: 14469 + 689 = 15158
Step 23: 15158 + 689 = 15847
Step 24: 15847 + 689 = 16536
Step 25: 16536 + 689 = 17225
Step 26: 17225 + 689 = 17914
Step 27: 17914 + 689 = 18603
Step 28: 18603 + 689 = 19292
Step 29: 19292 + 689 = 19981
Step 30: 19981 + 689 = 20670
Step 31: 20670 + 689 = 21359
Step 32: 21359 + 689 = 22048
Step 33: 22048 + 689 = 22737
Step 34: 22737 + 689 = 23426
Step 35: 23426 + 689 = 24115
Step 36: 24115 + 689 = 24804
Step 37: 24804 + 689 = 25493
Step 38: 25493 + 689 = 26182
Step 39: 26182 + 689 = 26871
Step 40: 26871 + 689 = 27560
Step 41: 27560 + 689 = 28249
Step 42: 28249 + 689 = 28938
Step 43: 28938 + 689 = 29627
Step 44: 29627 + 689 = 30316
Step 45: 30316 + 689 = 31005
Step 46: 31005 + 689 = 31694
Step 47: 31694 + 689 = 32383
Step 48: 32383 + 689 = 33072
Step 49: 33072 + 689 = 33761
Step 50: 33761 + 689 = 34450
Step 51: 34450 + 689 = 35139
Step 52: 35139 + 689 = 35828
Step 53: 35828 + 689 = 36517
Step 54: 36517 + 689 = 37206
Step 55: 37206 + 689 = 37895
Step 56: 37895 + 689 = 38584
Step 57: 38584 + 689 = 39273
Step 58: 39273 + 689 = 39962
Step 59: 39962 + 689 = 40651
Step 60: 40651 + 689 = 41340
Step 61: 41340 + 689 = 42029
Step 62: 42029 + 689 = 42718
Step 63: 42718 + 689 = 43407
Step 64: 43407 + 689 = 44096
Step 65: 44096 + 689 = 44785
Step 66: 44785 + 689 = 45474
Step 67: 45474 + 689 = 46163
Step 68: 46163 + 689 = 46852
Step 69: 46852 + 689 = 47541
Step 70: 47541 + 689 = 48230
Step 71: 48230 + 689 = 48919
Step 72: 48919 + 689 = 49608
Step 73: 49608 + 689 = 50297
Step 74: 50297 + 689 = 50986
Step 75: 50986 + 689 = 51675
Step 76: 51675 + 689 = 52364
Step 77: 52364 + 689 = 53053
Step 78: 53053 + 689 = 53742
Step 79: 53742 + 689 = 54431
Step 80: 54431 + 689 = 55120
Step 81: 55120 + 689 = 55809
Step 82: 55809 + 689 = 56498
Step 83: 56498 + 689 = 57187
Step 84: 57187 + 689 = 57876
Step 85: 57876 + 689 = 58565
Step 86: 58565 + 689 = 59254
Step 87: 59254 + 689 = 59943
Step 88: 59943 + 689 = 60632
Step 89: 60632 + 689 = 61321
Step 90: 61321 + 689 = 62010
Step 91: 62010 + 689 = 62699
Step 92: 62699 + 689 = 63388
Step 93: 63388 + 689 = 64077
Step 94: 64077 + 689 = 64766
Step 95: 64766 + 689 = 65455
Step 96: 65455 + 689 = 66144
Step 97: 66144 + 689 = 66833
Step 98: 66833 + 689 = 67522
Step 99: 67522 + 689 = 68211
Step 100: 68211 + 689 = 68900
Step 101: 68900 + 689 = 69589
Step 102: 69589 + 689 = 70278
Step 103: 70278 + 689 = 70967
Step 104: 70967 + 689 = 71656
Step 105: 71656 + 689 = 72345
Step 106: 72345 + 689 = 73034
Step 107: 73034 + 689 = 73723
Step 108: 73723 + 689 = 74412
Step 109: 74412 + 689 = 75101
Step 110: 75101 + 689 = 75790
Step 111: 75790 + 689 = 76479
Step 112: 76479 + 689 = 77168
Step 113: 77168 + 689 = 77857
Step 114: 77857 + 689 = 78546
Step 115: 78546 + 689 = 79235
Step 116: 79235 + 689 = 79924
Step 117: 79924 + 689 = 80613
Step 118: 80613 + 689 = 81302
Step 119: 81302 + 689 = 81991
Step 120: 81991 + 689 = 82680
Step 121: 82680 + 689 = 83369
Step 122: 83369 + 689 = 84058
Step 123: 84058 + 689 = 84747
Step 124: 84747 + 689 = 85436
Step 125: 85436 + 689 = 86125
Step 126: 86125 + 689 = 86814
Step 127: 86814 + 689 = 87503
Step 128: 87503 + 689 = 88192
Step 129: 88192 + 689 = 88881
Step 130: 88881 + 689 = 89570
Step 131: 89570 + 689 = 90259
Step 132: 90259 + 689 = 90948
Step 133: 90948 + 689 = 91637
Step 134: 91637 + 689 = 92326
Step 135: 92326 + 689 = 93015
Step 136: 93015 + 689 = 93704
Step 137: 93704 + 689 = 94393
Step 138: 94393 + 689 = 95082
Step 139: 95082 + 689 = 95771
Step 140: 95771 + 689 = 96460
Step 141: 96460 + 689 = 97149
Step 142: 97149 + 689 = 97838
Step 143: 97838 + 689 = 98527
Step 144: 98527 + 689 = 99216
Step 145: 99216 + 689 = 99905
Step 146: 99905 + 689 = 100594
Step 147: 100594 + 689 = 101283
Step 148: 101283 + 689 = 101972
Step 149: 101972 + 689 = 102661
Step 150: 102661 + 689 = 103350
Step 151: 103350 + 689 = 104039
Step 152: 104039 + 689 = 104728
Step 153: 104728 + 689 = 105417
Step 154: 105417 + 689 = 106106
Step 155: 106106 + 689 = 106795
Step 156: 106795 + 689 = 107484

So, 689*156 = 107484