Alright, let's solve this math problem step by step. First, we have the number 831. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 200. So, we're going to take the number 831 and add it to itself 200 times.
Step 1: 0 + 831 = 831
Step 2: 831 + 831 = 1662
Step 3: 1662 + 831 = 2493
Step 4: 2493 + 831 = 3324
Step 5: 3324 + 831 = 4155
Step 6: 4155 + 831 = 4986
Step 7: 4986 + 831 = 5817
Step 8: 5817 + 831 = 6648
Step 9: 6648 + 831 = 7479
Step 10: 7479 + 831 = 8310
Step 11: 8310 + 831 = 9141
Step 12: 9141 + 831 = 9972
Step 13: 9972 + 831 = 10803
Step 14: 10803 + 831 = 11634
Step 15: 11634 + 831 = 12465
Step 16: 12465 + 831 = 13296
Step 17: 13296 + 831 = 14127
Step 18: 14127 + 831 = 14958
Step 19: 14958 + 831 = 15789
Step 20: 15789 + 831 = 16620
Step 21: 16620 + 831 = 17451
Step 22: 17451 + 831 = 18282
Step 23: 18282 + 831 = 19113
Step 24: 19113 + 831 = 19944
Step 25: 19944 + 831 = 20775
Step 26: 20775 + 831 = 21606
Step 27: 21606 + 831 = 22437
Step 28: 22437 + 831 = 23268
Step 29: 23268 + 831 = 24099
Step 30: 24099 + 831 = 24930
Step 31: 24930 + 831 = 25761
Step 32: 25761 + 831 = 26592
Step 33: 26592 + 831 = 27423
Step 34: 27423 + 831 = 28254
Step 35: 28254 + 831 = 29085
Step 36: 29085 + 831 = 29916
Step 37: 29916 + 831 = 30747
Step 38: 30747 + 831 = 31578
Step 39: 31578 + 831 = 32409
Step 40: 32409 + 831 = 33240
Step 41: 33240 + 831 = 34071
Step 42: 34071 + 831 = 34902
Step 43: 34902 + 831 = 35733
Step 44: 35733 + 831 = 36564
Step 45: 36564 + 831 = 37395
Step 46: 37395 + 831 = 38226
Step 47: 38226 + 831 = 39057
Step 48: 39057 + 831 = 39888
Step 49: 39888 + 831 = 40719
Step 50: 40719 + 831 = 41550
Step 51: 41550 + 831 = 42381
Step 52: 42381 + 831 = 43212
Step 53: 43212 + 831 = 44043
Step 54: 44043 + 831 = 44874
Step 55: 44874 + 831 = 45705
Step 56: 45705 + 831 = 46536
Step 57: 46536 + 831 = 47367
Step 58: 47367 + 831 = 48198
Step 59: 48198 + 831 = 49029
Step 60: 49029 + 831 = 49860
Step 61: 49860 + 831 = 50691
Step 62: 50691 + 831 = 51522
Step 63: 51522 + 831 = 52353
Step 64: 52353 + 831 = 53184
Step 65: 53184 + 831 = 54015
Step 66: 54015 + 831 = 54846
Step 67: 54846 + 831 = 55677
Step 68: 55677 + 831 = 56508
Step 69: 56508 + 831 = 57339
Step 70: 57339 + 831 = 58170
Step 71: 58170 + 831 = 59001
Step 72: 59001 + 831 = 59832
Step 73: 59832 + 831 = 60663
Step 74: 60663 + 831 = 61494
Step 75: 61494 + 831 = 62325
Step 76: 62325 + 831 = 63156
Step 77: 63156 + 831 = 63987
Step 78: 63987 + 831 = 64818
Step 79: 64818 + 831 = 65649
Step 80: 65649 + 831 = 66480
Step 81: 66480 + 831 = 67311
Step 82: 67311 + 831 = 68142
Step 83: 68142 + 831 = 68973
Step 84: 68973 + 831 = 69804
Step 85: 69804 + 831 = 70635
Step 86: 70635 + 831 = 71466
Step 87: 71466 + 831 = 72297
Step 88: 72297 + 831 = 73128
Step 89: 73128 + 831 = 73959
Step 90: 73959 + 831 = 74790
Step 91: 74790 + 831 = 75621
Step 92: 75621 + 831 = 76452
Step 93: 76452 + 831 = 77283
Step 94: 77283 + 831 = 78114
Step 95: 78114 + 831 = 78945
Step 96: 78945 + 831 = 79776
Step 97: 79776 + 831 = 80607
Step 98: 80607 + 831 = 81438
Step 99: 81438 + 831 = 82269
Step 100: 82269 + 831 = 83100
Step 101: 83100 + 831 = 83931
Step 102: 83931 + 831 = 84762
Step 103: 84762 + 831 = 85593
Step 104: 85593 + 831 = 86424
Step 105: 86424 + 831 = 87255
Step 106: 87255 + 831 = 88086
Step 107: 88086 + 831 = 88917
Step 108: 88917 + 831 = 89748
Step 109: 89748 + 831 = 90579
Step 110: 90579 + 831 = 91410
Step 111: 91410 + 831 = 92241
Step 112: 92241 + 831 = 93072
Step 113: 93072 + 831 = 93903
Step 114: 93903 + 831 = 94734
Step 115: 94734 + 831 = 95565
Step 116: 95565 + 831 = 96396
Step 117: 96396 + 831 = 97227
Step 118: 97227 + 831 = 98058
Step 119: 98058 + 831 = 98889
Step 120: 98889 + 831 = 99720
Step 121: 99720 + 831 = 100551
Step 122: 100551 + 831 = 101382
Step 123: 101382 + 831 = 102213
Step 124: 102213 + 831 = 103044
Step 125: 103044 + 831 = 103875
Step 126: 103875 + 831 = 104706
Step 127: 104706 + 831 = 105537
Step 128: 105537 + 831 = 106368
Step 129: 106368 + 831 = 107199
Step 130: 107199 + 831 = 108030
Step 131: 108030 + 831 = 108861
Step 132: 108861 + 831 = 109692
Step 133: 109692 + 831 = 110523
Step 134: 110523 + 831 = 111354
Step 135: 111354 + 831 = 112185
Step 136: 112185 + 831 = 113016
Step 137: 113016 + 831 = 113847
Step 138: 113847 + 831 = 114678
Step 139: 114678 + 831 = 115509
Step 140: 115509 + 831 = 116340
Step 141: 116340 + 831 = 117171
Step 142: 117171 + 831 = 118002
Step 143: 118002 + 831 = 118833
Step 144: 118833 + 831 = 119664
Step 145: 119664 + 831 = 120495
Step 146: 120495 + 831 = 121326
Step 147: 121326 + 831 = 122157
Step 148: 122157 + 831 = 122988
Step 149: 122988 + 831 = 123819
Step 150: 123819 + 831 = 124650
Step 151: 124650 + 831 = 125481
Step 152: 125481 + 831 = 126312
Step 153: 126312 + 831 = 127143
Step 154: 127143 + 831 = 127974
Step 155: 127974 + 831 = 128805
Step 156: 128805 + 831 = 129636
Step 157: 129636 + 831 = 130467
Step 158: 130467 + 831 = 131298
Step 159: 131298 + 831 = 132129
Step 160: 132129 + 831 = 132960
Step 161: 132960 + 831 = 133791
Step 162: 133791 + 831 = 134622
Step 163: 134622 + 831 = 135453
Step 164: 135453 + 831 = 136284
Step 165: 136284 + 831 = 137115
Step 166: 137115 + 831 = 137946
Step 167: 137946 + 831 = 138777
Step 168: 138777 + 831 = 139608
Step 169: 139608 + 831 = 140439
Step 170: 140439 + 831 = 141270
Step 171: 141270 + 831 = 142101
Step 172: 142101 + 831 = 142932
Step 173: 142932 + 831 = 143763
Step 174: 143763 + 831 = 144594
Step 175: 144594 + 831 = 145425
Step 176: 145425 + 831 = 146256
Step 177: 146256 + 831 = 147087
Step 178: 147087 + 831 = 147918
Step 179: 147918 + 831 = 148749
Step 180: 148749 + 831 = 149580
Step 181: 149580 + 831 = 150411
Step 182: 150411 + 831 = 151242
Step 183: 151242 + 831 = 152073
Step 184: 152073 + 831 = 152904
Step 185: 152904 + 831 = 153735
Step 186: 153735 + 831 = 154566
Step 187: 154566 + 831 = 155397
Step 188: 155397 + 831 = 156228
Step 189: 156228 + 831 = 157059
Step 190: 157059 + 831 = 157890
Step 191: 157890 + 831 = 158721
Step 192: 158721 + 831 = 159552
Step 193: 159552 + 831 = 160383
Step 194: 160383 + 831 = 161214
Step 195: 161214 + 831 = 162045
Step 196: 162045 + 831 = 162876
Step 197: 162876 + 831 = 163707
Step 198: 163707 + 831 = 164538
Step 199: 164538 + 831 = 165369
Step 200: 165369 + 831 = 166200

So, 831*200 = 166200