OK, let's work through this together. We're starting with 781 and we're going to multiply it by 182, which means we add 781 to itself 182 times.
Step 1: 0 + 781 = 781
Step 2: 781 + 781 = 1562
Step 3: 1562 + 781 = 2343
Step 4: 2343 + 781 = 3124
Step 5: 3124 + 781 = 3905
Step 6: 3905 + 781 = 4686
Step 7: 4686 + 781 = 5467
Step 8: 5467 + 781 = 6248
Step 9: 6248 + 781 = 7029
Step 10: 7029 + 781 = 7810
Step 11: 7810 + 781 = 8591
Step 12: 8591 + 781 = 9372
Step 13: 9372 + 781 = 10153
Step 14: 10153 + 781 = 10934
Step 15: 10934 + 781 = 11715
Step 16: 11715 + 781 = 12496
Step 17: 12496 + 781 = 13277
Step 18: 13277 + 781 = 14058
Step 19: 14058 + 781 = 14839
Step 20: 14839 + 781 = 15620
Step 21: 15620 + 781 = 16401
Step 22: 16401 + 781 = 17182
Step 23: 17182 + 781 = 17963
Step 24: 17963 + 781 = 18744
Step 25: 18744 + 781 = 19525
Step 26: 19525 + 781 = 20306
Step 27: 20306 + 781 = 21087
Step 28: 21087 + 781 = 21868
Step 29: 21868 + 781 = 22649
Step 30: 22649 + 781 = 23430
Step 31: 23430 + 781 = 24211
Step 32: 24211 + 781 = 24992
Step 33: 24992 + 781 = 25773
Step 34: 25773 + 781 = 26554
Step 35: 26554 + 781 = 27335
Step 36: 27335 + 781 = 28116
Step 37: 28116 + 781 = 28897
Step 38: 28897 + 781 = 29678
Step 39: 29678 + 781 = 30459
Step 40: 30459 + 781 = 31240
Step 41: 31240 + 781 = 32021
Step 42: 32021 + 781 = 32802
Step 43: 32802 + 781 = 33583
Step 44: 33583 + 781 = 34364
Step 45: 34364 + 781 = 35145
Step 46: 35145 + 781 = 35926
Step 47: 35926 + 781 = 36707
Step 48: 36707 + 781 = 37488
Step 49: 37488 + 781 = 38269
Step 50: 38269 + 781 = 39050
Step 51: 39050 + 781 = 39831
Step 52: 39831 + 781 = 40612
Step 53: 40612 + 781 = 41393
Step 54: 41393 + 781 = 42174
Step 55: 42174 + 781 = 42955
Step 56: 42955 + 781 = 43736
Step 57: 43736 + 781 = 44517
Step 58: 44517 + 781 = 45298
Step 59: 45298 + 781 = 46079
Step 60: 46079 + 781 = 46860
Step 61: 46860 + 781 = 47641
Step 62: 47641 + 781 = 48422
Step 63: 48422 + 781 = 49203
Step 64: 49203 + 781 = 49984
Step 65: 49984 + 781 = 50765
Step 66: 50765 + 781 = 51546
Step 67: 51546 + 781 = 52327
Step 68: 52327 + 781 = 53108
Step 69: 53108 + 781 = 53889
Step 70: 53889 + 781 = 54670
Step 71: 54670 + 781 = 55451
Step 72: 55451 + 781 = 56232
Step 73: 56232 + 781 = 57013
Step 74: 57013 + 781 = 57794
Step 75: 57794 + 781 = 58575
Step 76: 58575 + 781 = 59356
Step 77: 59356 + 781 = 60137
Step 78: 60137 + 781 = 60918
Step 79: 60918 + 781 = 61699
Step 80: 61699 + 781 = 62480
Step 81: 62480 + 781 = 63261
Step 82: 63261 + 781 = 64042
Step 83: 64042 + 781 = 64823
Step 84: 64823 + 781 = 65604
Step 85: 65604 + 781 = 66385
Step 86: 66385 + 781 = 67166
Step 87: 67166 + 781 = 67947
Step 88: 67947 + 781 = 68728
Step 89: 68728 + 781 = 69509
Step 90: 69509 + 781 = 70290
Step 91: 70290 + 781 = 71071
Step 92: 71071 + 781 = 71852
Step 93: 71852 + 781 = 72633
Step 94: 72633 + 781 = 73414
Step 95: 73414 + 781 = 74195
Step 96: 74195 + 781 = 74976
Step 97: 74976 + 781 = 75757
Step 98: 75757 + 781 = 76538
Step 99: 76538 + 781 = 77319
Step 100: 77319 + 781 = 78100
Step 101: 78100 + 781 = 78881
Step 102: 78881 + 781 = 79662
Step 103: 79662 + 781 = 80443
Step 104: 80443 + 781 = 81224
Step 105: 81224 + 781 = 82005
Step 106: 82005 + 781 = 82786
Step 107: 82786 + 781 = 83567
Step 108: 83567 + 781 = 84348
Step 109: 84348 + 781 = 85129
Step 110: 85129 + 781 = 85910
Step 111: 85910 + 781 = 86691
Step 112: 86691 + 781 = 87472
Step 113: 87472 + 781 = 88253
Step 114: 88253 + 781 = 89034
Step 115: 89034 + 781 = 89815
Step 116: 89815 + 781 = 90596
Step 117: 90596 + 781 = 91377
Step 118: 91377 + 781 = 92158
Step 119: 92158 + 781 = 92939
Step 120: 92939 + 781 = 93720
Step 121: 93720 + 781 = 94501
Step 122: 94501 + 781 = 95282
Step 123: 95282 + 781 = 96063
Step 124: 96063 + 781 = 96844
Step 125: 96844 + 781 = 97625
Step 126: 97625 + 781 = 98406
Step 127: 98406 + 781 = 99187
Step 128: 99187 + 781 = 99968
Step 129: 99968 + 781 = 100749
Step 130: 100749 + 781 = 101530
Step 131: 101530 + 781 = 102311
Step 132: 102311 + 781 = 103092
Step 133: 103092 + 781 = 103873
Step 134: 103873 + 781 = 104654
Step 135: 104654 + 781 = 105435
Step 136: 105435 + 781 = 106216
Step 137: 106216 + 781 = 106997
Step 138: 106997 + 781 = 107778
Step 139: 107778 + 781 = 108559
Step 140: 108559 + 781 = 109340
Step 141: 109340 + 781 = 110121
Step 142: 110121 + 781 = 110902
Step 143: 110902 + 781 = 111683
Step 144: 111683 + 781 = 112464
Step 145: 112464 + 781 = 113245
Step 146: 113245 + 781 = 114026
Step 147: 114026 + 781 = 114807
Step 148: 114807 + 781 = 115588
Step 149: 115588 + 781 = 116369
Step 150: 116369 + 781 = 117150
Step 151: 117150 + 781 = 117931
Step 152: 117931 + 781 = 118712
Step 153: 118712 + 781 = 119493
Step 154: 119493 + 781 = 120274
Step 155: 120274 + 781 = 121055
Step 156: 121055 + 781 = 121836
Step 157: 121836 + 781 = 122617
Step 158: 122617 + 781 = 123398
Step 159: 123398 + 781 = 124179
Step 160: 124179 + 781 = 124960
Step 161: 124960 + 781 = 125741
Step 162: 125741 + 781 = 126522
Step 163: 126522 + 781 = 127303
Step 164: 127303 + 781 = 128084
Step 165: 128084 + 781 = 128865
Step 166: 128865 + 781 = 129646
Step 167: 129646 + 781 = 130427
Step 168: 130427 + 781 = 131208
Step 169: 131208 + 781 = 131989
Step 170: 131989 + 781 = 132770
Step 171: 132770 + 781 = 133551
Step 172: 133551 + 781 = 134332
Step 173: 134332 + 781 = 135113
Step 174: 135113 + 781 = 135894
Step 175: 135894 + 781 = 136675
Step 176: 136675 + 781 = 137456
Step 177: 137456 + 781 = 138237
Step 178: 138237 + 781 = 139018
Step 179: 139018 + 781 = 139799
Step 180: 139799 + 781 = 140580
Step 181: 140580 + 781 = 141361
Step 182: 141361 + 781 = 142142

So, 781*182 = 142142