Sure thing! We've got 902 and we're gonna multiply it by 131. That's the same as adding 902 to itself 131 times.
Step 1: 0 + 902 = 902
Step 2: 902 + 902 = 1804
Step 3: 1804 + 902 = 2706
Step 4: 2706 + 902 = 3608
Step 5: 3608 + 902 = 4510
Step 6: 4510 + 902 = 5412
Step 7: 5412 + 902 = 6314
Step 8: 6314 + 902 = 7216
Step 9: 7216 + 902 = 8118
Step 10: 8118 + 902 = 9020
Step 11: 9020 + 902 = 9922
Step 12: 9922 + 902 = 10824
Step 13: 10824 + 902 = 11726
Step 14: 11726 + 902 = 12628
Step 15: 12628 + 902 = 13530
Step 16: 13530 + 902 = 14432
Step 17: 14432 + 902 = 15334
Step 18: 15334 + 902 = 16236
Step 19: 16236 + 902 = 17138
Step 20: 17138 + 902 = 18040
Step 21: 18040 + 902 = 18942
Step 22: 18942 + 902 = 19844
Step 23: 19844 + 902 = 20746
Step 24: 20746 + 902 = 21648
Step 25: 21648 + 902 = 22550
Step 26: 22550 + 902 = 23452
Step 27: 23452 + 902 = 24354
Step 28: 24354 + 902 = 25256
Step 29: 25256 + 902 = 26158
Step 30: 26158 + 902 = 27060
Step 31: 27060 + 902 = 27962
Step 32: 27962 + 902 = 28864
Step 33: 28864 + 902 = 29766
Step 34: 29766 + 902 = 30668
Step 35: 30668 + 902 = 31570
Step 36: 31570 + 902 = 32472
Step 37: 32472 + 902 = 33374
Step 38: 33374 + 902 = 34276
Step 39: 34276 + 902 = 35178
Step 40: 35178 + 902 = 36080
Step 41: 36080 + 902 = 36982
Step 42: 36982 + 902 = 37884
Step 43: 37884 + 902 = 38786
Step 44: 38786 + 902 = 39688
Step 45: 39688 + 902 = 40590
Step 46: 40590 + 902 = 41492
Step 47: 41492 + 902 = 42394
Step 48: 42394 + 902 = 43296
Step 49: 43296 + 902 = 44198
Step 50: 44198 + 902 = 45100
Step 51: 45100 + 902 = 46002
Step 52: 46002 + 902 = 46904
Step 53: 46904 + 902 = 47806
Step 54: 47806 + 902 = 48708
Step 55: 48708 + 902 = 49610
Step 56: 49610 + 902 = 50512
Step 57: 50512 + 902 = 51414
Step 58: 51414 + 902 = 52316
Step 59: 52316 + 902 = 53218
Step 60: 53218 + 902 = 54120
Step 61: 54120 + 902 = 55022
Step 62: 55022 + 902 = 55924
Step 63: 55924 + 902 = 56826
Step 64: 56826 + 902 = 57728
Step 65: 57728 + 902 = 58630
Step 66: 58630 + 902 = 59532
Step 67: 59532 + 902 = 60434
Step 68: 60434 + 902 = 61336
Step 69: 61336 + 902 = 62238
Step 70: 62238 + 902 = 63140
Step 71: 63140 + 902 = 64042
Step 72: 64042 + 902 = 64944
Step 73: 64944 + 902 = 65846
Step 74: 65846 + 902 = 66748
Step 75: 66748 + 902 = 67650
Step 76: 67650 + 902 = 68552
Step 77: 68552 + 902 = 69454
Step 78: 69454 + 902 = 70356
Step 79: 70356 + 902 = 71258
Step 80: 71258 + 902 = 72160
Step 81: 72160 + 902 = 73062
Step 82: 73062 + 902 = 73964
Step 83: 73964 + 902 = 74866
Step 84: 74866 + 902 = 75768
Step 85: 75768 + 902 = 76670
Step 86: 76670 + 902 = 77572
Step 87: 77572 + 902 = 78474
Step 88: 78474 + 902 = 79376
Step 89: 79376 + 902 = 80278
Step 90: 80278 + 902 = 81180
Step 91: 81180 + 902 = 82082
Step 92: 82082 + 902 = 82984
Step 93: 82984 + 902 = 83886
Step 94: 83886 + 902 = 84788
Step 95: 84788 + 902 = 85690
Step 96: 85690 + 902 = 86592
Step 97: 86592 + 902 = 87494
Step 98: 87494 + 902 = 88396
Step 99: 88396 + 902 = 89298
Step 100: 89298 + 902 = 90200
Step 101: 90200 + 902 = 91102
Step 102: 91102 + 902 = 92004
Step 103: 92004 + 902 = 92906
Step 104: 92906 + 902 = 93808
Step 105: 93808 + 902 = 94710
Step 106: 94710 + 902 = 95612
Step 107: 95612 + 902 = 96514
Step 108: 96514 + 902 = 97416
Step 109: 97416 + 902 = 98318
Step 110: 98318 + 902 = 99220
Step 111: 99220 + 902 = 100122
Step 112: 100122 + 902 = 101024
Step 113: 101024 + 902 = 101926
Step 114: 101926 + 902 = 102828
Step 115: 102828 + 902 = 103730
Step 116: 103730 + 902 = 104632
Step 117: 104632 + 902 = 105534
Step 118: 105534 + 902 = 106436
Step 119: 106436 + 902 = 107338
Step 120: 107338 + 902 = 108240
Step 121: 108240 + 902 = 109142
Step 122: 109142 + 902 = 110044
Step 123: 110044 + 902 = 110946
Step 124: 110946 + 902 = 111848
Step 125: 111848 + 902 = 112750
Step 126: 112750 + 902 = 113652
Step 127: 113652 + 902 = 114554
Step 128: 114554 + 902 = 115456
Step 129: 115456 + 902 = 116358
Step 130: 116358 + 902 = 117260
Step 131: 117260 + 902 = 118162

So, 902*131 = 118162