Alright, let's solve this math problem step by step. First, we have the number 821. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 140. So, we're going to take the number 821 and add it to itself 140 times.
Step 1: 0 + 821 = 821
Step 2: 821 + 821 = 1642
Step 3: 1642 + 821 = 2463
Step 4: 2463 + 821 = 3284
Step 5: 3284 + 821 = 4105
Step 6: 4105 + 821 = 4926
Step 7: 4926 + 821 = 5747
Step 8: 5747 + 821 = 6568
Step 9: 6568 + 821 = 7389
Step 10: 7389 + 821 = 8210
Step 11: 8210 + 821 = 9031
Step 12: 9031 + 821 = 9852
Step 13: 9852 + 821 = 10673
Step 14: 10673 + 821 = 11494
Step 15: 11494 + 821 = 12315
Step 16: 12315 + 821 = 13136
Step 17: 13136 + 821 = 13957
Step 18: 13957 + 821 = 14778
Step 19: 14778 + 821 = 15599
Step 20: 15599 + 821 = 16420
Step 21: 16420 + 821 = 17241
Step 22: 17241 + 821 = 18062
Step 23: 18062 + 821 = 18883
Step 24: 18883 + 821 = 19704
Step 25: 19704 + 821 = 20525
Step 26: 20525 + 821 = 21346
Step 27: 21346 + 821 = 22167
Step 28: 22167 + 821 = 22988
Step 29: 22988 + 821 = 23809
Step 30: 23809 + 821 = 24630
Step 31: 24630 + 821 = 25451
Step 32: 25451 + 821 = 26272
Step 33: 26272 + 821 = 27093
Step 34: 27093 + 821 = 27914
Step 35: 27914 + 821 = 28735
Step 36: 28735 + 821 = 29556
Step 37: 29556 + 821 = 30377
Step 38: 30377 + 821 = 31198
Step 39: 31198 + 821 = 32019
Step 40: 32019 + 821 = 32840
Step 41: 32840 + 821 = 33661
Step 42: 33661 + 821 = 34482
Step 43: 34482 + 821 = 35303
Step 44: 35303 + 821 = 36124
Step 45: 36124 + 821 = 36945
Step 46: 36945 + 821 = 37766
Step 47: 37766 + 821 = 38587
Step 48: 38587 + 821 = 39408
Step 49: 39408 + 821 = 40229
Step 50: 40229 + 821 = 41050
Step 51: 41050 + 821 = 41871
Step 52: 41871 + 821 = 42692
Step 53: 42692 + 821 = 43513
Step 54: 43513 + 821 = 44334
Step 55: 44334 + 821 = 45155
Step 56: 45155 + 821 = 45976
Step 57: 45976 + 821 = 46797
Step 58: 46797 + 821 = 47618
Step 59: 47618 + 821 = 48439
Step 60: 48439 + 821 = 49260
Step 61: 49260 + 821 = 50081
Step 62: 50081 + 821 = 50902
Step 63: 50902 + 821 = 51723
Step 64: 51723 + 821 = 52544
Step 65: 52544 + 821 = 53365
Step 66: 53365 + 821 = 54186
Step 67: 54186 + 821 = 55007
Step 68: 55007 + 821 = 55828
Step 69: 55828 + 821 = 56649
Step 70: 56649 + 821 = 57470
Step 71: 57470 + 821 = 58291
Step 72: 58291 + 821 = 59112
Step 73: 59112 + 821 = 59933
Step 74: 59933 + 821 = 60754
Step 75: 60754 + 821 = 61575
Step 76: 61575 + 821 = 62396
Step 77: 62396 + 821 = 63217
Step 78: 63217 + 821 = 64038
Step 79: 64038 + 821 = 64859
Step 80: 64859 + 821 = 65680
Step 81: 65680 + 821 = 66501
Step 82: 66501 + 821 = 67322
Step 83: 67322 + 821 = 68143
Step 84: 68143 + 821 = 68964
Step 85: 68964 + 821 = 69785
Step 86: 69785 + 821 = 70606
Step 87: 70606 + 821 = 71427
Step 88: 71427 + 821 = 72248
Step 89: 72248 + 821 = 73069
Step 90: 73069 + 821 = 73890
Step 91: 73890 + 821 = 74711
Step 92: 74711 + 821 = 75532
Step 93: 75532 + 821 = 76353
Step 94: 76353 + 821 = 77174
Step 95: 77174 + 821 = 77995
Step 96: 77995 + 821 = 78816
Step 97: 78816 + 821 = 79637
Step 98: 79637 + 821 = 80458
Step 99: 80458 + 821 = 81279
Step 100: 81279 + 821 = 82100
Step 101: 82100 + 821 = 82921
Step 102: 82921 + 821 = 83742
Step 103: 83742 + 821 = 84563
Step 104: 84563 + 821 = 85384
Step 105: 85384 + 821 = 86205
Step 106: 86205 + 821 = 87026
Step 107: 87026 + 821 = 87847
Step 108: 87847 + 821 = 88668
Step 109: 88668 + 821 = 89489
Step 110: 89489 + 821 = 90310
Step 111: 90310 + 821 = 91131
Step 112: 91131 + 821 = 91952
Step 113: 91952 + 821 = 92773
Step 114: 92773 + 821 = 93594
Step 115: 93594 + 821 = 94415
Step 116: 94415 + 821 = 95236
Step 117: 95236 + 821 = 96057
Step 118: 96057 + 821 = 96878
Step 119: 96878 + 821 = 97699
Step 120: 97699 + 821 = 98520
Step 121: 98520 + 821 = 99341
Step 122: 99341 + 821 = 100162
Step 123: 100162 + 821 = 100983
Step 124: 100983 + 821 = 101804
Step 125: 101804 + 821 = 102625
Step 126: 102625 + 821 = 103446
Step 127: 103446 + 821 = 104267
Step 128: 104267 + 821 = 105088
Step 129: 105088 + 821 = 105909
Step 130: 105909 + 821 = 106730
Step 131: 106730 + 821 = 107551
Step 132: 107551 + 821 = 108372
Step 133: 108372 + 821 = 109193
Step 134: 109193 + 821 = 110014
Step 135: 110014 + 821 = 110835
Step 136: 110835 + 821 = 111656
Step 137: 111656 + 821 = 112477
Step 138: 112477 + 821 = 113298
Step 139: 113298 + 821 = 114119
Step 140: 114119 + 821 = 114940

So, 821*140 = 114940