Without delay, let's solve this. We've got 531 and we will be multiplying it by 105, that is, adding 531 to itself 105 times.
Step 1: 0 + 531 = 531
Step 2: 531 + 531 = 1062
Step 3: 1062 + 531 = 1593
Step 4: 1593 + 531 = 2124
Step 5: 2124 + 531 = 2655
Step 6: 2655 + 531 = 3186
Step 7: 3186 + 531 = 3717
Step 8: 3717 + 531 = 4248
Step 9: 4248 + 531 = 4779
Step 10: 4779 + 531 = 5310
Step 11: 5310 + 531 = 5841
Step 12: 5841 + 531 = 6372
Step 13: 6372 + 531 = 6903
Step 14: 6903 + 531 = 7434
Step 15: 7434 + 531 = 7965
Step 16: 7965 + 531 = 8496
Step 17: 8496 + 531 = 9027
Step 18: 9027 + 531 = 9558
Step 19: 9558 + 531 = 10089
Step 20: 10089 + 531 = 10620
Step 21: 10620 + 531 = 11151
Step 22: 11151 + 531 = 11682
Step 23: 11682 + 531 = 12213
Step 24: 12213 + 531 = 12744
Step 25: 12744 + 531 = 13275
Step 26: 13275 + 531 = 13806
Step 27: 13806 + 531 = 14337
Step 28: 14337 + 531 = 14868
Step 29: 14868 + 531 = 15399
Step 30: 15399 + 531 = 15930
Step 31: 15930 + 531 = 16461
Step 32: 16461 + 531 = 16992
Step 33: 16992 + 531 = 17523
Step 34: 17523 + 531 = 18054
Step 35: 18054 + 531 = 18585
Step 36: 18585 + 531 = 19116
Step 37: 19116 + 531 = 19647
Step 38: 19647 + 531 = 20178
Step 39: 20178 + 531 = 20709
Step 40: 20709 + 531 = 21240
Step 41: 21240 + 531 = 21771
Step 42: 21771 + 531 = 22302
Step 43: 22302 + 531 = 22833
Step 44: 22833 + 531 = 23364
Step 45: 23364 + 531 = 23895
Step 46: 23895 + 531 = 24426
Step 47: 24426 + 531 = 24957
Step 48: 24957 + 531 = 25488
Step 49: 25488 + 531 = 26019
Step 50: 26019 + 531 = 26550
Step 51: 26550 + 531 = 27081
Step 52: 27081 + 531 = 27612
Step 53: 27612 + 531 = 28143
Step 54: 28143 + 531 = 28674
Step 55: 28674 + 531 = 29205
Step 56: 29205 + 531 = 29736
Step 57: 29736 + 531 = 30267
Step 58: 30267 + 531 = 30798
Step 59: 30798 + 531 = 31329
Step 60: 31329 + 531 = 31860
Step 61: 31860 + 531 = 32391
Step 62: 32391 + 531 = 32922
Step 63: 32922 + 531 = 33453
Step 64: 33453 + 531 = 33984
Step 65: 33984 + 531 = 34515
Step 66: 34515 + 531 = 35046
Step 67: 35046 + 531 = 35577
Step 68: 35577 + 531 = 36108
Step 69: 36108 + 531 = 36639
Step 70: 36639 + 531 = 37170
Step 71: 37170 + 531 = 37701
Step 72: 37701 + 531 = 38232
Step 73: 38232 + 531 = 38763
Step 74: 38763 + 531 = 39294
Step 75: 39294 + 531 = 39825
Step 76: 39825 + 531 = 40356
Step 77: 40356 + 531 = 40887
Step 78: 40887 + 531 = 41418
Step 79: 41418 + 531 = 41949
Step 80: 41949 + 531 = 42480
Step 81: 42480 + 531 = 43011
Step 82: 43011 + 531 = 43542
Step 83: 43542 + 531 = 44073
Step 84: 44073 + 531 = 44604
Step 85: 44604 + 531 = 45135
Step 86: 45135 + 531 = 45666
Step 87: 45666 + 531 = 46197
Step 88: 46197 + 531 = 46728
Step 89: 46728 + 531 = 47259
Step 90: 47259 + 531 = 47790
Step 91: 47790 + 531 = 48321
Step 92: 48321 + 531 = 48852
Step 93: 48852 + 531 = 49383
Step 94: 49383 + 531 = 49914
Step 95: 49914 + 531 = 50445
Step 96: 50445 + 531 = 50976
Step 97: 50976 + 531 = 51507
Step 98: 51507 + 531 = 52038
Step 99: 52038 + 531 = 52569
Step 100: 52569 + 531 = 53100
Step 101: 53100 + 531 = 53631
Step 102: 53631 + 531 = 54162
Step 103: 54162 + 531 = 54693
Step 104: 54693 + 531 = 55224
Step 105: 55224 + 531 = 55755

So, 531*105 = 55755