Without delay, let's solve this. We've got 778 and we will be multiplying it by 159, that is, adding 778 to itself 159 times.
Step 1: 0 + 778 = 778
Step 2: 778 + 778 = 1556
Step 3: 1556 + 778 = 2334
Step 4: 2334 + 778 = 3112
Step 5: 3112 + 778 = 3890
Step 6: 3890 + 778 = 4668
Step 7: 4668 + 778 = 5446
Step 8: 5446 + 778 = 6224
Step 9: 6224 + 778 = 7002
Step 10: 7002 + 778 = 7780
Step 11: 7780 + 778 = 8558
Step 12: 8558 + 778 = 9336
Step 13: 9336 + 778 = 10114
Step 14: 10114 + 778 = 10892
Step 15: 10892 + 778 = 11670
Step 16: 11670 + 778 = 12448
Step 17: 12448 + 778 = 13226
Step 18: 13226 + 778 = 14004
Step 19: 14004 + 778 = 14782
Step 20: 14782 + 778 = 15560
Step 21: 15560 + 778 = 16338
Step 22: 16338 + 778 = 17116
Step 23: 17116 + 778 = 17894
Step 24: 17894 + 778 = 18672
Step 25: 18672 + 778 = 19450
Step 26: 19450 + 778 = 20228
Step 27: 20228 + 778 = 21006
Step 28: 21006 + 778 = 21784
Step 29: 21784 + 778 = 22562
Step 30: 22562 + 778 = 23340
Step 31: 23340 + 778 = 24118
Step 32: 24118 + 778 = 24896
Step 33: 24896 + 778 = 25674
Step 34: 25674 + 778 = 26452
Step 35: 26452 + 778 = 27230
Step 36: 27230 + 778 = 28008
Step 37: 28008 + 778 = 28786
Step 38: 28786 + 778 = 29564
Step 39: 29564 + 778 = 30342
Step 40: 30342 + 778 = 31120
Step 41: 31120 + 778 = 31898
Step 42: 31898 + 778 = 32676
Step 43: 32676 + 778 = 33454
Step 44: 33454 + 778 = 34232
Step 45: 34232 + 778 = 35010
Step 46: 35010 + 778 = 35788
Step 47: 35788 + 778 = 36566
Step 48: 36566 + 778 = 37344
Step 49: 37344 + 778 = 38122
Step 50: 38122 + 778 = 38900
Step 51: 38900 + 778 = 39678
Step 52: 39678 + 778 = 40456
Step 53: 40456 + 778 = 41234
Step 54: 41234 + 778 = 42012
Step 55: 42012 + 778 = 42790
Step 56: 42790 + 778 = 43568
Step 57: 43568 + 778 = 44346
Step 58: 44346 + 778 = 45124
Step 59: 45124 + 778 = 45902
Step 60: 45902 + 778 = 46680
Step 61: 46680 + 778 = 47458
Step 62: 47458 + 778 = 48236
Step 63: 48236 + 778 = 49014
Step 64: 49014 + 778 = 49792
Step 65: 49792 + 778 = 50570
Step 66: 50570 + 778 = 51348
Step 67: 51348 + 778 = 52126
Step 68: 52126 + 778 = 52904
Step 69: 52904 + 778 = 53682
Step 70: 53682 + 778 = 54460
Step 71: 54460 + 778 = 55238
Step 72: 55238 + 778 = 56016
Step 73: 56016 + 778 = 56794
Step 74: 56794 + 778 = 57572
Step 75: 57572 + 778 = 58350
Step 76: 58350 + 778 = 59128
Step 77: 59128 + 778 = 59906
Step 78: 59906 + 778 = 60684
Step 79: 60684 + 778 = 61462
Step 80: 61462 + 778 = 62240
Step 81: 62240 + 778 = 63018
Step 82: 63018 + 778 = 63796
Step 83: 63796 + 778 = 64574
Step 84: 64574 + 778 = 65352
Step 85: 65352 + 778 = 66130
Step 86: 66130 + 778 = 66908
Step 87: 66908 + 778 = 67686
Step 88: 67686 + 778 = 68464
Step 89: 68464 + 778 = 69242
Step 90: 69242 + 778 = 70020
Step 91: 70020 + 778 = 70798
Step 92: 70798 + 778 = 71576
Step 93: 71576 + 778 = 72354
Step 94: 72354 + 778 = 73132
Step 95: 73132 + 778 = 73910
Step 96: 73910 + 778 = 74688
Step 97: 74688 + 778 = 75466
Step 98: 75466 + 778 = 76244
Step 99: 76244 + 778 = 77022
Step 100: 77022 + 778 = 77800
Step 101: 77800 + 778 = 78578
Step 102: 78578 + 778 = 79356
Step 103: 79356 + 778 = 80134
Step 104: 80134 + 778 = 80912
Step 105: 80912 + 778 = 81690
Step 106: 81690 + 778 = 82468
Step 107: 82468 + 778 = 83246
Step 108: 83246 + 778 = 84024
Step 109: 84024 + 778 = 84802
Step 110: 84802 + 778 = 85580
Step 111: 85580 + 778 = 86358
Step 112: 86358 + 778 = 87136
Step 113: 87136 + 778 = 87914
Step 114: 87914 + 778 = 88692
Step 115: 88692 + 778 = 89470
Step 116: 89470 + 778 = 90248
Step 117: 90248 + 778 = 91026
Step 118: 91026 + 778 = 91804
Step 119: 91804 + 778 = 92582
Step 120: 92582 + 778 = 93360
Step 121: 93360 + 778 = 94138
Step 122: 94138 + 778 = 94916
Step 123: 94916 + 778 = 95694
Step 124: 95694 + 778 = 96472
Step 125: 96472 + 778 = 97250
Step 126: 97250 + 778 = 98028
Step 127: 98028 + 778 = 98806
Step 128: 98806 + 778 = 99584
Step 129: 99584 + 778 = 100362
Step 130: 100362 + 778 = 101140
Step 131: 101140 + 778 = 101918
Step 132: 101918 + 778 = 102696
Step 133: 102696 + 778 = 103474
Step 134: 103474 + 778 = 104252
Step 135: 104252 + 778 = 105030
Step 136: 105030 + 778 = 105808
Step 137: 105808 + 778 = 106586
Step 138: 106586 + 778 = 107364
Step 139: 107364 + 778 = 108142
Step 140: 108142 + 778 = 108920
Step 141: 108920 + 778 = 109698
Step 142: 109698 + 778 = 110476
Step 143: 110476 + 778 = 111254
Step 144: 111254 + 778 = 112032
Step 145: 112032 + 778 = 112810
Step 146: 112810 + 778 = 113588
Step 147: 113588 + 778 = 114366
Step 148: 114366 + 778 = 115144
Step 149: 115144 + 778 = 115922
Step 150: 115922 + 778 = 116700
Step 151: 116700 + 778 = 117478
Step 152: 117478 + 778 = 118256
Step 153: 118256 + 778 = 119034
Step 154: 119034 + 778 = 119812
Step 155: 119812 + 778 = 120590
Step 156: 120590 + 778 = 121368
Step 157: 121368 + 778 = 122146
Step 158: 122146 + 778 = 122924
Step 159: 122924 + 778 = 123702

So, 778*159 = 123702