Let's get this math done. We have 785 and we're going to multiply it by 231. This is the same as taking 785 and adding it to itself 231 times.
Step 1: 0 + 785 = 785
Step 2: 785 + 785 = 1570
Step 3: 1570 + 785 = 2355
Step 4: 2355 + 785 = 3140
Step 5: 3140 + 785 = 3925
Step 6: 3925 + 785 = 4710
Step 7: 4710 + 785 = 5495
Step 8: 5495 + 785 = 6280
Step 9: 6280 + 785 = 7065
Step 10: 7065 + 785 = 7850
Step 11: 7850 + 785 = 8635
Step 12: 8635 + 785 = 9420
Step 13: 9420 + 785 = 10205
Step 14: 10205 + 785 = 10990
Step 15: 10990 + 785 = 11775
Step 16: 11775 + 785 = 12560
Step 17: 12560 + 785 = 13345
Step 18: 13345 + 785 = 14130
Step 19: 14130 + 785 = 14915
Step 20: 14915 + 785 = 15700
Step 21: 15700 + 785 = 16485
Step 22: 16485 + 785 = 17270
Step 23: 17270 + 785 = 18055
Step 24: 18055 + 785 = 18840
Step 25: 18840 + 785 = 19625
Step 26: 19625 + 785 = 20410
Step 27: 20410 + 785 = 21195
Step 28: 21195 + 785 = 21980
Step 29: 21980 + 785 = 22765
Step 30: 22765 + 785 = 23550
Step 31: 23550 + 785 = 24335
Step 32: 24335 + 785 = 25120
Step 33: 25120 + 785 = 25905
Step 34: 25905 + 785 = 26690
Step 35: 26690 + 785 = 27475
Step 36: 27475 + 785 = 28260
Step 37: 28260 + 785 = 29045
Step 38: 29045 + 785 = 29830
Step 39: 29830 + 785 = 30615
Step 40: 30615 + 785 = 31400
Step 41: 31400 + 785 = 32185
Step 42: 32185 + 785 = 32970
Step 43: 32970 + 785 = 33755
Step 44: 33755 + 785 = 34540
Step 45: 34540 + 785 = 35325
Step 46: 35325 + 785 = 36110
Step 47: 36110 + 785 = 36895
Step 48: 36895 + 785 = 37680
Step 49: 37680 + 785 = 38465
Step 50: 38465 + 785 = 39250
Step 51: 39250 + 785 = 40035
Step 52: 40035 + 785 = 40820
Step 53: 40820 + 785 = 41605
Step 54: 41605 + 785 = 42390
Step 55: 42390 + 785 = 43175
Step 56: 43175 + 785 = 43960
Step 57: 43960 + 785 = 44745
Step 58: 44745 + 785 = 45530
Step 59: 45530 + 785 = 46315
Step 60: 46315 + 785 = 47100
Step 61: 47100 + 785 = 47885
Step 62: 47885 + 785 = 48670
Step 63: 48670 + 785 = 49455
Step 64: 49455 + 785 = 50240
Step 65: 50240 + 785 = 51025
Step 66: 51025 + 785 = 51810
Step 67: 51810 + 785 = 52595
Step 68: 52595 + 785 = 53380
Step 69: 53380 + 785 = 54165
Step 70: 54165 + 785 = 54950
Step 71: 54950 + 785 = 55735
Step 72: 55735 + 785 = 56520
Step 73: 56520 + 785 = 57305
Step 74: 57305 + 785 = 58090
Step 75: 58090 + 785 = 58875
Step 76: 58875 + 785 = 59660
Step 77: 59660 + 785 = 60445
Step 78: 60445 + 785 = 61230
Step 79: 61230 + 785 = 62015
Step 80: 62015 + 785 = 62800
Step 81: 62800 + 785 = 63585
Step 82: 63585 + 785 = 64370
Step 83: 64370 + 785 = 65155
Step 84: 65155 + 785 = 65940
Step 85: 65940 + 785 = 66725
Step 86: 66725 + 785 = 67510
Step 87: 67510 + 785 = 68295
Step 88: 68295 + 785 = 69080
Step 89: 69080 + 785 = 69865
Step 90: 69865 + 785 = 70650
Step 91: 70650 + 785 = 71435
Step 92: 71435 + 785 = 72220
Step 93: 72220 + 785 = 73005
Step 94: 73005 + 785 = 73790
Step 95: 73790 + 785 = 74575
Step 96: 74575 + 785 = 75360
Step 97: 75360 + 785 = 76145
Step 98: 76145 + 785 = 76930
Step 99: 76930 + 785 = 77715
Step 100: 77715 + 785 = 78500
Step 101: 78500 + 785 = 79285
Step 102: 79285 + 785 = 80070
Step 103: 80070 + 785 = 80855
Step 104: 80855 + 785 = 81640
Step 105: 81640 + 785 = 82425
Step 106: 82425 + 785 = 83210
Step 107: 83210 + 785 = 83995
Step 108: 83995 + 785 = 84780
Step 109: 84780 + 785 = 85565
Step 110: 85565 + 785 = 86350
Step 111: 86350 + 785 = 87135
Step 112: 87135 + 785 = 87920
Step 113: 87920 + 785 = 88705
Step 114: 88705 + 785 = 89490
Step 115: 89490 + 785 = 90275
Step 116: 90275 + 785 = 91060
Step 117: 91060 + 785 = 91845
Step 118: 91845 + 785 = 92630
Step 119: 92630 + 785 = 93415
Step 120: 93415 + 785 = 94200
Step 121: 94200 + 785 = 94985
Step 122: 94985 + 785 = 95770
Step 123: 95770 + 785 = 96555
Step 124: 96555 + 785 = 97340
Step 125: 97340 + 785 = 98125
Step 126: 98125 + 785 = 98910
Step 127: 98910 + 785 = 99695
Step 128: 99695 + 785 = 100480
Step 129: 100480 + 785 = 101265
Step 130: 101265 + 785 = 102050
Step 131: 102050 + 785 = 102835
Step 132: 102835 + 785 = 103620
Step 133: 103620 + 785 = 104405
Step 134: 104405 + 785 = 105190
Step 135: 105190 + 785 = 105975
Step 136: 105975 + 785 = 106760
Step 137: 106760 + 785 = 107545
Step 138: 107545 + 785 = 108330
Step 139: 108330 + 785 = 109115
Step 140: 109115 + 785 = 109900
Step 141: 109900 + 785 = 110685
Step 142: 110685 + 785 = 111470
Step 143: 111470 + 785 = 112255
Step 144: 112255 + 785 = 113040
Step 145: 113040 + 785 = 113825
Step 146: 113825 + 785 = 114610
Step 147: 114610 + 785 = 115395
Step 148: 115395 + 785 = 116180
Step 149: 116180 + 785 = 116965
Step 150: 116965 + 785 = 117750
Step 151: 117750 + 785 = 118535
Step 152: 118535 + 785 = 119320
Step 153: 119320 + 785 = 120105
Step 154: 120105 + 785 = 120890
Step 155: 120890 + 785 = 121675
Step 156: 121675 + 785 = 122460
Step 157: 122460 + 785 = 123245
Step 158: 123245 + 785 = 124030
Step 159: 124030 + 785 = 124815
Step 160: 124815 + 785 = 125600
Step 161: 125600 + 785 = 126385
Step 162: 126385 + 785 = 127170
Step 163: 127170 + 785 = 127955
Step 164: 127955 + 785 = 128740
Step 165: 128740 + 785 = 129525
Step 166: 129525 + 785 = 130310
Step 167: 130310 + 785 = 131095
Step 168: 131095 + 785 = 131880
Step 169: 131880 + 785 = 132665
Step 170: 132665 + 785 = 133450
Step 171: 133450 + 785 = 134235
Step 172: 134235 + 785 = 135020
Step 173: 135020 + 785 = 135805
Step 174: 135805 + 785 = 136590
Step 175: 136590 + 785 = 137375
Step 176: 137375 + 785 = 138160
Step 177: 138160 + 785 = 138945
Step 178: 138945 + 785 = 139730
Step 179: 139730 + 785 = 140515
Step 180: 140515 + 785 = 141300
Step 181: 141300 + 785 = 142085
Step 182: 142085 + 785 = 142870
Step 183: 142870 + 785 = 143655
Step 184: 143655 + 785 = 144440
Step 185: 144440 + 785 = 145225
Step 186: 145225 + 785 = 146010
Step 187: 146010 + 785 = 146795
Step 188: 146795 + 785 = 147580
Step 189: 147580 + 785 = 148365
Step 190: 148365 + 785 = 149150
Step 191: 149150 + 785 = 149935
Step 192: 149935 + 785 = 150720
Step 193: 150720 + 785 = 151505
Step 194: 151505 + 785 = 152290
Step 195: 152290 + 785 = 153075
Step 196: 153075 + 785 = 153860
Step 197: 153860 + 785 = 154645
Step 198: 154645 + 785 = 155430
Step 199: 155430 + 785 = 156215
Step 200: 156215 + 785 = 157000
Step 201: 157000 + 785 = 157785
Step 202: 157785 + 785 = 158570
Step 203: 158570 + 785 = 159355
Step 204: 159355 + 785 = 160140
Step 205: 160140 + 785 = 160925
Step 206: 160925 + 785 = 161710
Step 207: 161710 + 785 = 162495
Step 208: 162495 + 785 = 163280
Step 209: 163280 + 785 = 164065
Step 210: 164065 + 785 = 164850
Step 211: 164850 + 785 = 165635
Step 212: 165635 + 785 = 166420
Step 213: 166420 + 785 = 167205
Step 214: 167205 + 785 = 167990
Step 215: 167990 + 785 = 168775
Step 216: 168775 + 785 = 169560
Step 217: 169560 + 785 = 170345
Step 218: 170345 + 785 = 171130
Step 219: 171130 + 785 = 171915
Step 220: 171915 + 785 = 172700
Step 221: 172700 + 785 = 173485
Step 222: 173485 + 785 = 174270
Step 223: 174270 + 785 = 175055
Step 224: 175055 + 785 = 175840
Step 225: 175840 + 785 = 176625
Step 226: 176625 + 785 = 177410
Step 227: 177410 + 785 = 178195
Step 228: 178195 + 785 = 178980
Step 229: 178980 + 785 = 179765
Step 230: 179765 + 785 = 180550
Step 231: 180550 + 785 = 181335

So, 785*231 = 181335