Without delay, let's solve this. We've got 772 and we will be multiplying it by 158, that is, adding 772 to itself 158 times.
Step 1: 0 + 772 = 772
Step 2: 772 + 772 = 1544
Step 3: 1544 + 772 = 2316
Step 4: 2316 + 772 = 3088
Step 5: 3088 + 772 = 3860
Step 6: 3860 + 772 = 4632
Step 7: 4632 + 772 = 5404
Step 8: 5404 + 772 = 6176
Step 9: 6176 + 772 = 6948
Step 10: 6948 + 772 = 7720
Step 11: 7720 + 772 = 8492
Step 12: 8492 + 772 = 9264
Step 13: 9264 + 772 = 10036
Step 14: 10036 + 772 = 10808
Step 15: 10808 + 772 = 11580
Step 16: 11580 + 772 = 12352
Step 17: 12352 + 772 = 13124
Step 18: 13124 + 772 = 13896
Step 19: 13896 + 772 = 14668
Step 20: 14668 + 772 = 15440
Step 21: 15440 + 772 = 16212
Step 22: 16212 + 772 = 16984
Step 23: 16984 + 772 = 17756
Step 24: 17756 + 772 = 18528
Step 25: 18528 + 772 = 19300
Step 26: 19300 + 772 = 20072
Step 27: 20072 + 772 = 20844
Step 28: 20844 + 772 = 21616
Step 29: 21616 + 772 = 22388
Step 30: 22388 + 772 = 23160
Step 31: 23160 + 772 = 23932
Step 32: 23932 + 772 = 24704
Step 33: 24704 + 772 = 25476
Step 34: 25476 + 772 = 26248
Step 35: 26248 + 772 = 27020
Step 36: 27020 + 772 = 27792
Step 37: 27792 + 772 = 28564
Step 38: 28564 + 772 = 29336
Step 39: 29336 + 772 = 30108
Step 40: 30108 + 772 = 30880
Step 41: 30880 + 772 = 31652
Step 42: 31652 + 772 = 32424
Step 43: 32424 + 772 = 33196
Step 44: 33196 + 772 = 33968
Step 45: 33968 + 772 = 34740
Step 46: 34740 + 772 = 35512
Step 47: 35512 + 772 = 36284
Step 48: 36284 + 772 = 37056
Step 49: 37056 + 772 = 37828
Step 50: 37828 + 772 = 38600
Step 51: 38600 + 772 = 39372
Step 52: 39372 + 772 = 40144
Step 53: 40144 + 772 = 40916
Step 54: 40916 + 772 = 41688
Step 55: 41688 + 772 = 42460
Step 56: 42460 + 772 = 43232
Step 57: 43232 + 772 = 44004
Step 58: 44004 + 772 = 44776
Step 59: 44776 + 772 = 45548
Step 60: 45548 + 772 = 46320
Step 61: 46320 + 772 = 47092
Step 62: 47092 + 772 = 47864
Step 63: 47864 + 772 = 48636
Step 64: 48636 + 772 = 49408
Step 65: 49408 + 772 = 50180
Step 66: 50180 + 772 = 50952
Step 67: 50952 + 772 = 51724
Step 68: 51724 + 772 = 52496
Step 69: 52496 + 772 = 53268
Step 70: 53268 + 772 = 54040
Step 71: 54040 + 772 = 54812
Step 72: 54812 + 772 = 55584
Step 73: 55584 + 772 = 56356
Step 74: 56356 + 772 = 57128
Step 75: 57128 + 772 = 57900
Step 76: 57900 + 772 = 58672
Step 77: 58672 + 772 = 59444
Step 78: 59444 + 772 = 60216
Step 79: 60216 + 772 = 60988
Step 80: 60988 + 772 = 61760
Step 81: 61760 + 772 = 62532
Step 82: 62532 + 772 = 63304
Step 83: 63304 + 772 = 64076
Step 84: 64076 + 772 = 64848
Step 85: 64848 + 772 = 65620
Step 86: 65620 + 772 = 66392
Step 87: 66392 + 772 = 67164
Step 88: 67164 + 772 = 67936
Step 89: 67936 + 772 = 68708
Step 90: 68708 + 772 = 69480
Step 91: 69480 + 772 = 70252
Step 92: 70252 + 772 = 71024
Step 93: 71024 + 772 = 71796
Step 94: 71796 + 772 = 72568
Step 95: 72568 + 772 = 73340
Step 96: 73340 + 772 = 74112
Step 97: 74112 + 772 = 74884
Step 98: 74884 + 772 = 75656
Step 99: 75656 + 772 = 76428
Step 100: 76428 + 772 = 77200
Step 101: 77200 + 772 = 77972
Step 102: 77972 + 772 = 78744
Step 103: 78744 + 772 = 79516
Step 104: 79516 + 772 = 80288
Step 105: 80288 + 772 = 81060
Step 106: 81060 + 772 = 81832
Step 107: 81832 + 772 = 82604
Step 108: 82604 + 772 = 83376
Step 109: 83376 + 772 = 84148
Step 110: 84148 + 772 = 84920
Step 111: 84920 + 772 = 85692
Step 112: 85692 + 772 = 86464
Step 113: 86464 + 772 = 87236
Step 114: 87236 + 772 = 88008
Step 115: 88008 + 772 = 88780
Step 116: 88780 + 772 = 89552
Step 117: 89552 + 772 = 90324
Step 118: 90324 + 772 = 91096
Step 119: 91096 + 772 = 91868
Step 120: 91868 + 772 = 92640
Step 121: 92640 + 772 = 93412
Step 122: 93412 + 772 = 94184
Step 123: 94184 + 772 = 94956
Step 124: 94956 + 772 = 95728
Step 125: 95728 + 772 = 96500
Step 126: 96500 + 772 = 97272
Step 127: 97272 + 772 = 98044
Step 128: 98044 + 772 = 98816
Step 129: 98816 + 772 = 99588
Step 130: 99588 + 772 = 100360
Step 131: 100360 + 772 = 101132
Step 132: 101132 + 772 = 101904
Step 133: 101904 + 772 = 102676
Step 134: 102676 + 772 = 103448
Step 135: 103448 + 772 = 104220
Step 136: 104220 + 772 = 104992
Step 137: 104992 + 772 = 105764
Step 138: 105764 + 772 = 106536
Step 139: 106536 + 772 = 107308
Step 140: 107308 + 772 = 108080
Step 141: 108080 + 772 = 108852
Step 142: 108852 + 772 = 109624
Step 143: 109624 + 772 = 110396
Step 144: 110396 + 772 = 111168
Step 145: 111168 + 772 = 111940
Step 146: 111940 + 772 = 112712
Step 147: 112712 + 772 = 113484
Step 148: 113484 + 772 = 114256
Step 149: 114256 + 772 = 115028
Step 150: 115028 + 772 = 115800
Step 151: 115800 + 772 = 116572
Step 152: 116572 + 772 = 117344
Step 153: 117344 + 772 = 118116
Step 154: 118116 + 772 = 118888
Step 155: 118888 + 772 = 119660
Step 156: 119660 + 772 = 120432
Step 157: 120432 + 772 = 121204
Step 158: 121204 + 772 = 121976

So, 772*158 = 121976