Without delay, let's solve this. We've got 561 and we will be multiplying it by 153, that is, adding 561 to itself 153 times.
Step 1: 0 + 561 = 561
Step 2: 561 + 561 = 1122
Step 3: 1122 + 561 = 1683
Step 4: 1683 + 561 = 2244
Step 5: 2244 + 561 = 2805
Step 6: 2805 + 561 = 3366
Step 7: 3366 + 561 = 3927
Step 8: 3927 + 561 = 4488
Step 9: 4488 + 561 = 5049
Step 10: 5049 + 561 = 5610
Step 11: 5610 + 561 = 6171
Step 12: 6171 + 561 = 6732
Step 13: 6732 + 561 = 7293
Step 14: 7293 + 561 = 7854
Step 15: 7854 + 561 = 8415
Step 16: 8415 + 561 = 8976
Step 17: 8976 + 561 = 9537
Step 18: 9537 + 561 = 10098
Step 19: 10098 + 561 = 10659
Step 20: 10659 + 561 = 11220
Step 21: 11220 + 561 = 11781
Step 22: 11781 + 561 = 12342
Step 23: 12342 + 561 = 12903
Step 24: 12903 + 561 = 13464
Step 25: 13464 + 561 = 14025
Step 26: 14025 + 561 = 14586
Step 27: 14586 + 561 = 15147
Step 28: 15147 + 561 = 15708
Step 29: 15708 + 561 = 16269
Step 30: 16269 + 561 = 16830
Step 31: 16830 + 561 = 17391
Step 32: 17391 + 561 = 17952
Step 33: 17952 + 561 = 18513
Step 34: 18513 + 561 = 19074
Step 35: 19074 + 561 = 19635
Step 36: 19635 + 561 = 20196
Step 37: 20196 + 561 = 20757
Step 38: 20757 + 561 = 21318
Step 39: 21318 + 561 = 21879
Step 40: 21879 + 561 = 22440
Step 41: 22440 + 561 = 23001
Step 42: 23001 + 561 = 23562
Step 43: 23562 + 561 = 24123
Step 44: 24123 + 561 = 24684
Step 45: 24684 + 561 = 25245
Step 46: 25245 + 561 = 25806
Step 47: 25806 + 561 = 26367
Step 48: 26367 + 561 = 26928
Step 49: 26928 + 561 = 27489
Step 50: 27489 + 561 = 28050
Step 51: 28050 + 561 = 28611
Step 52: 28611 + 561 = 29172
Step 53: 29172 + 561 = 29733
Step 54: 29733 + 561 = 30294
Step 55: 30294 + 561 = 30855
Step 56: 30855 + 561 = 31416
Step 57: 31416 + 561 = 31977
Step 58: 31977 + 561 = 32538
Step 59: 32538 + 561 = 33099
Step 60: 33099 + 561 = 33660
Step 61: 33660 + 561 = 34221
Step 62: 34221 + 561 = 34782
Step 63: 34782 + 561 = 35343
Step 64: 35343 + 561 = 35904
Step 65: 35904 + 561 = 36465
Step 66: 36465 + 561 = 37026
Step 67: 37026 + 561 = 37587
Step 68: 37587 + 561 = 38148
Step 69: 38148 + 561 = 38709
Step 70: 38709 + 561 = 39270
Step 71: 39270 + 561 = 39831
Step 72: 39831 + 561 = 40392
Step 73: 40392 + 561 = 40953
Step 74: 40953 + 561 = 41514
Step 75: 41514 + 561 = 42075
Step 76: 42075 + 561 = 42636
Step 77: 42636 + 561 = 43197
Step 78: 43197 + 561 = 43758
Step 79: 43758 + 561 = 44319
Step 80: 44319 + 561 = 44880
Step 81: 44880 + 561 = 45441
Step 82: 45441 + 561 = 46002
Step 83: 46002 + 561 = 46563
Step 84: 46563 + 561 = 47124
Step 85: 47124 + 561 = 47685
Step 86: 47685 + 561 = 48246
Step 87: 48246 + 561 = 48807
Step 88: 48807 + 561 = 49368
Step 89: 49368 + 561 = 49929
Step 90: 49929 + 561 = 50490
Step 91: 50490 + 561 = 51051
Step 92: 51051 + 561 = 51612
Step 93: 51612 + 561 = 52173
Step 94: 52173 + 561 = 52734
Step 95: 52734 + 561 = 53295
Step 96: 53295 + 561 = 53856
Step 97: 53856 + 561 = 54417
Step 98: 54417 + 561 = 54978
Step 99: 54978 + 561 = 55539
Step 100: 55539 + 561 = 56100
Step 101: 56100 + 561 = 56661
Step 102: 56661 + 561 = 57222
Step 103: 57222 + 561 = 57783
Step 104: 57783 + 561 = 58344
Step 105: 58344 + 561 = 58905
Step 106: 58905 + 561 = 59466
Step 107: 59466 + 561 = 60027
Step 108: 60027 + 561 = 60588
Step 109: 60588 + 561 = 61149
Step 110: 61149 + 561 = 61710
Step 111: 61710 + 561 = 62271
Step 112: 62271 + 561 = 62832
Step 113: 62832 + 561 = 63393
Step 114: 63393 + 561 = 63954
Step 115: 63954 + 561 = 64515
Step 116: 64515 + 561 = 65076
Step 117: 65076 + 561 = 65637
Step 118: 65637 + 561 = 66198
Step 119: 66198 + 561 = 66759
Step 120: 66759 + 561 = 67320
Step 121: 67320 + 561 = 67881
Step 122: 67881 + 561 = 68442
Step 123: 68442 + 561 = 69003
Step 124: 69003 + 561 = 69564
Step 125: 69564 + 561 = 70125
Step 126: 70125 + 561 = 70686
Step 127: 70686 + 561 = 71247
Step 128: 71247 + 561 = 71808
Step 129: 71808 + 561 = 72369
Step 130: 72369 + 561 = 72930
Step 131: 72930 + 561 = 73491
Step 132: 73491 + 561 = 74052
Step 133: 74052 + 561 = 74613
Step 134: 74613 + 561 = 75174
Step 135: 75174 + 561 = 75735
Step 136: 75735 + 561 = 76296
Step 137: 76296 + 561 = 76857
Step 138: 76857 + 561 = 77418
Step 139: 77418 + 561 = 77979
Step 140: 77979 + 561 = 78540
Step 141: 78540 + 561 = 79101
Step 142: 79101 + 561 = 79662
Step 143: 79662 + 561 = 80223
Step 144: 80223 + 561 = 80784
Step 145: 80784 + 561 = 81345
Step 146: 81345 + 561 = 81906
Step 147: 81906 + 561 = 82467
Step 148: 82467 + 561 = 83028
Step 149: 83028 + 561 = 83589
Step 150: 83589 + 561 = 84150
Step 151: 84150 + 561 = 84711
Step 152: 84711 + 561 = 85272
Step 153: 85272 + 561 = 85833

So, 561*153 = 85833