Without delay, let's solve this. We've got 369 and we will be multiplying it by 84, that is, adding 369 to itself 84 times.
Step 1: 0 + 369 = 369
Step 2: 369 + 369 = 738
Step 3: 738 + 369 = 1107
Step 4: 1107 + 369 = 1476
Step 5: 1476 + 369 = 1845
Step 6: 1845 + 369 = 2214
Step 7: 2214 + 369 = 2583
Step 8: 2583 + 369 = 2952
Step 9: 2952 + 369 = 3321
Step 10: 3321 + 369 = 3690
Step 11: 3690 + 369 = 4059
Step 12: 4059 + 369 = 4428
Step 13: 4428 + 369 = 4797
Step 14: 4797 + 369 = 5166
Step 15: 5166 + 369 = 5535
Step 16: 5535 + 369 = 5904
Step 17: 5904 + 369 = 6273
Step 18: 6273 + 369 = 6642
Step 19: 6642 + 369 = 7011
Step 20: 7011 + 369 = 7380
Step 21: 7380 + 369 = 7749
Step 22: 7749 + 369 = 8118
Step 23: 8118 + 369 = 8487
Step 24: 8487 + 369 = 8856
Step 25: 8856 + 369 = 9225
Step 26: 9225 + 369 = 9594
Step 27: 9594 + 369 = 9963
Step 28: 9963 + 369 = 10332
Step 29: 10332 + 369 = 10701
Step 30: 10701 + 369 = 11070
Step 31: 11070 + 369 = 11439
Step 32: 11439 + 369 = 11808
Step 33: 11808 + 369 = 12177
Step 34: 12177 + 369 = 12546
Step 35: 12546 + 369 = 12915
Step 36: 12915 + 369 = 13284
Step 37: 13284 + 369 = 13653
Step 38: 13653 + 369 = 14022
Step 39: 14022 + 369 = 14391
Step 40: 14391 + 369 = 14760
Step 41: 14760 + 369 = 15129
Step 42: 15129 + 369 = 15498
Step 43: 15498 + 369 = 15867
Step 44: 15867 + 369 = 16236
Step 45: 16236 + 369 = 16605
Step 46: 16605 + 369 = 16974
Step 47: 16974 + 369 = 17343
Step 48: 17343 + 369 = 17712
Step 49: 17712 + 369 = 18081
Step 50: 18081 + 369 = 18450
Step 51: 18450 + 369 = 18819
Step 52: 18819 + 369 = 19188
Step 53: 19188 + 369 = 19557
Step 54: 19557 + 369 = 19926
Step 55: 19926 + 369 = 20295
Step 56: 20295 + 369 = 20664
Step 57: 20664 + 369 = 21033
Step 58: 21033 + 369 = 21402
Step 59: 21402 + 369 = 21771
Step 60: 21771 + 369 = 22140
Step 61: 22140 + 369 = 22509
Step 62: 22509 + 369 = 22878
Step 63: 22878 + 369 = 23247
Step 64: 23247 + 369 = 23616
Step 65: 23616 + 369 = 23985
Step 66: 23985 + 369 = 24354
Step 67: 24354 + 369 = 24723
Step 68: 24723 + 369 = 25092
Step 69: 25092 + 369 = 25461
Step 70: 25461 + 369 = 25830
Step 71: 25830 + 369 = 26199
Step 72: 26199 + 369 = 26568
Step 73: 26568 + 369 = 26937
Step 74: 26937 + 369 = 27306
Step 75: 27306 + 369 = 27675
Step 76: 27675 + 369 = 28044
Step 77: 28044 + 369 = 28413
Step 78: 28413 + 369 = 28782
Step 79: 28782 + 369 = 29151
Step 80: 29151 + 369 = 29520
Step 81: 29520 + 369 = 29889
Step 82: 29889 + 369 = 30258
Step 83: 30258 + 369 = 30627
Step 84: 30627 + 369 = 30996

So, 369*84 = 30996