OK, let's work through this together. We're starting with 774 and we're going to multiply it by 231, which means we add 774 to itself 231 times.
Step 1: 0 + 774 = 774
Step 2: 774 + 774 = 1548
Step 3: 1548 + 774 = 2322
Step 4: 2322 + 774 = 3096
Step 5: 3096 + 774 = 3870
Step 6: 3870 + 774 = 4644
Step 7: 4644 + 774 = 5418
Step 8: 5418 + 774 = 6192
Step 9: 6192 + 774 = 6966
Step 10: 6966 + 774 = 7740
Step 11: 7740 + 774 = 8514
Step 12: 8514 + 774 = 9288
Step 13: 9288 + 774 = 10062
Step 14: 10062 + 774 = 10836
Step 15: 10836 + 774 = 11610
Step 16: 11610 + 774 = 12384
Step 17: 12384 + 774 = 13158
Step 18: 13158 + 774 = 13932
Step 19: 13932 + 774 = 14706
Step 20: 14706 + 774 = 15480
Step 21: 15480 + 774 = 16254
Step 22: 16254 + 774 = 17028
Step 23: 17028 + 774 = 17802
Step 24: 17802 + 774 = 18576
Step 25: 18576 + 774 = 19350
Step 26: 19350 + 774 = 20124
Step 27: 20124 + 774 = 20898
Step 28: 20898 + 774 = 21672
Step 29: 21672 + 774 = 22446
Step 30: 22446 + 774 = 23220
Step 31: 23220 + 774 = 23994
Step 32: 23994 + 774 = 24768
Step 33: 24768 + 774 = 25542
Step 34: 25542 + 774 = 26316
Step 35: 26316 + 774 = 27090
Step 36: 27090 + 774 = 27864
Step 37: 27864 + 774 = 28638
Step 38: 28638 + 774 = 29412
Step 39: 29412 + 774 = 30186
Step 40: 30186 + 774 = 30960
Step 41: 30960 + 774 = 31734
Step 42: 31734 + 774 = 32508
Step 43: 32508 + 774 = 33282
Step 44: 33282 + 774 = 34056
Step 45: 34056 + 774 = 34830
Step 46: 34830 + 774 = 35604
Step 47: 35604 + 774 = 36378
Step 48: 36378 + 774 = 37152
Step 49: 37152 + 774 = 37926
Step 50: 37926 + 774 = 38700
Step 51: 38700 + 774 = 39474
Step 52: 39474 + 774 = 40248
Step 53: 40248 + 774 = 41022
Step 54: 41022 + 774 = 41796
Step 55: 41796 + 774 = 42570
Step 56: 42570 + 774 = 43344
Step 57: 43344 + 774 = 44118
Step 58: 44118 + 774 = 44892
Step 59: 44892 + 774 = 45666
Step 60: 45666 + 774 = 46440
Step 61: 46440 + 774 = 47214
Step 62: 47214 + 774 = 47988
Step 63: 47988 + 774 = 48762
Step 64: 48762 + 774 = 49536
Step 65: 49536 + 774 = 50310
Step 66: 50310 + 774 = 51084
Step 67: 51084 + 774 = 51858
Step 68: 51858 + 774 = 52632
Step 69: 52632 + 774 = 53406
Step 70: 53406 + 774 = 54180
Step 71: 54180 + 774 = 54954
Step 72: 54954 + 774 = 55728
Step 73: 55728 + 774 = 56502
Step 74: 56502 + 774 = 57276
Step 75: 57276 + 774 = 58050
Step 76: 58050 + 774 = 58824
Step 77: 58824 + 774 = 59598
Step 78: 59598 + 774 = 60372
Step 79: 60372 + 774 = 61146
Step 80: 61146 + 774 = 61920
Step 81: 61920 + 774 = 62694
Step 82: 62694 + 774 = 63468
Step 83: 63468 + 774 = 64242
Step 84: 64242 + 774 = 65016
Step 85: 65016 + 774 = 65790
Step 86: 65790 + 774 = 66564
Step 87: 66564 + 774 = 67338
Step 88: 67338 + 774 = 68112
Step 89: 68112 + 774 = 68886
Step 90: 68886 + 774 = 69660
Step 91: 69660 + 774 = 70434
Step 92: 70434 + 774 = 71208
Step 93: 71208 + 774 = 71982
Step 94: 71982 + 774 = 72756
Step 95: 72756 + 774 = 73530
Step 96: 73530 + 774 = 74304
Step 97: 74304 + 774 = 75078
Step 98: 75078 + 774 = 75852
Step 99: 75852 + 774 = 76626
Step 100: 76626 + 774 = 77400
Step 101: 77400 + 774 = 78174
Step 102: 78174 + 774 = 78948
Step 103: 78948 + 774 = 79722
Step 104: 79722 + 774 = 80496
Step 105: 80496 + 774 = 81270
Step 106: 81270 + 774 = 82044
Step 107: 82044 + 774 = 82818
Step 108: 82818 + 774 = 83592
Step 109: 83592 + 774 = 84366
Step 110: 84366 + 774 = 85140
Step 111: 85140 + 774 = 85914
Step 112: 85914 + 774 = 86688
Step 113: 86688 + 774 = 87462
Step 114: 87462 + 774 = 88236
Step 115: 88236 + 774 = 89010
Step 116: 89010 + 774 = 89784
Step 117: 89784 + 774 = 90558
Step 118: 90558 + 774 = 91332
Step 119: 91332 + 774 = 92106
Step 120: 92106 + 774 = 92880
Step 121: 92880 + 774 = 93654
Step 122: 93654 + 774 = 94428
Step 123: 94428 + 774 = 95202
Step 124: 95202 + 774 = 95976
Step 125: 95976 + 774 = 96750
Step 126: 96750 + 774 = 97524
Step 127: 97524 + 774 = 98298
Step 128: 98298 + 774 = 99072
Step 129: 99072 + 774 = 99846
Step 130: 99846 + 774 = 100620
Step 131: 100620 + 774 = 101394
Step 132: 101394 + 774 = 102168
Step 133: 102168 + 774 = 102942
Step 134: 102942 + 774 = 103716
Step 135: 103716 + 774 = 104490
Step 136: 104490 + 774 = 105264
Step 137: 105264 + 774 = 106038
Step 138: 106038 + 774 = 106812
Step 139: 106812 + 774 = 107586
Step 140: 107586 + 774 = 108360
Step 141: 108360 + 774 = 109134
Step 142: 109134 + 774 = 109908
Step 143: 109908 + 774 = 110682
Step 144: 110682 + 774 = 111456
Step 145: 111456 + 774 = 112230
Step 146: 112230 + 774 = 113004
Step 147: 113004 + 774 = 113778
Step 148: 113778 + 774 = 114552
Step 149: 114552 + 774 = 115326
Step 150: 115326 + 774 = 116100
Step 151: 116100 + 774 = 116874
Step 152: 116874 + 774 = 117648
Step 153: 117648 + 774 = 118422
Step 154: 118422 + 774 = 119196
Step 155: 119196 + 774 = 119970
Step 156: 119970 + 774 = 120744
Step 157: 120744 + 774 = 121518
Step 158: 121518 + 774 = 122292
Step 159: 122292 + 774 = 123066
Step 160: 123066 + 774 = 123840
Step 161: 123840 + 774 = 124614
Step 162: 124614 + 774 = 125388
Step 163: 125388 + 774 = 126162
Step 164: 126162 + 774 = 126936
Step 165: 126936 + 774 = 127710
Step 166: 127710 + 774 = 128484
Step 167: 128484 + 774 = 129258
Step 168: 129258 + 774 = 130032
Step 169: 130032 + 774 = 130806
Step 170: 130806 + 774 = 131580
Step 171: 131580 + 774 = 132354
Step 172: 132354 + 774 = 133128
Step 173: 133128 + 774 = 133902
Step 174: 133902 + 774 = 134676
Step 175: 134676 + 774 = 135450
Step 176: 135450 + 774 = 136224
Step 177: 136224 + 774 = 136998
Step 178: 136998 + 774 = 137772
Step 179: 137772 + 774 = 138546
Step 180: 138546 + 774 = 139320
Step 181: 139320 + 774 = 140094
Step 182: 140094 + 774 = 140868
Step 183: 140868 + 774 = 141642
Step 184: 141642 + 774 = 142416
Step 185: 142416 + 774 = 143190
Step 186: 143190 + 774 = 143964
Step 187: 143964 + 774 = 144738
Step 188: 144738 + 774 = 145512
Step 189: 145512 + 774 = 146286
Step 190: 146286 + 774 = 147060
Step 191: 147060 + 774 = 147834
Step 192: 147834 + 774 = 148608
Step 193: 148608 + 774 = 149382
Step 194: 149382 + 774 = 150156
Step 195: 150156 + 774 = 150930
Step 196: 150930 + 774 = 151704
Step 197: 151704 + 774 = 152478
Step 198: 152478 + 774 = 153252
Step 199: 153252 + 774 = 154026
Step 200: 154026 + 774 = 154800
Step 201: 154800 + 774 = 155574
Step 202: 155574 + 774 = 156348
Step 203: 156348 + 774 = 157122
Step 204: 157122 + 774 = 157896
Step 205: 157896 + 774 = 158670
Step 206: 158670 + 774 = 159444
Step 207: 159444 + 774 = 160218
Step 208: 160218 + 774 = 160992
Step 209: 160992 + 774 = 161766
Step 210: 161766 + 774 = 162540
Step 211: 162540 + 774 = 163314
Step 212: 163314 + 774 = 164088
Step 213: 164088 + 774 = 164862
Step 214: 164862 + 774 = 165636
Step 215: 165636 + 774 = 166410
Step 216: 166410 + 774 = 167184
Step 217: 167184 + 774 = 167958
Step 218: 167958 + 774 = 168732
Step 219: 168732 + 774 = 169506
Step 220: 169506 + 774 = 170280
Step 221: 170280 + 774 = 171054
Step 222: 171054 + 774 = 171828
Step 223: 171828 + 774 = 172602
Step 224: 172602 + 774 = 173376
Step 225: 173376 + 774 = 174150
Step 226: 174150 + 774 = 174924
Step 227: 174924 + 774 = 175698
Step 228: 175698 + 774 = 176472
Step 229: 176472 + 774 = 177246
Step 230: 177246 + 774 = 178020
Step 231: 178020 + 774 = 178794

So, 774*231 = 178794