Let's roll up our sleeves and solve this. We have 115 and we're going to multiply it by 190, essentially adding 115 to itself 190 times.
Step 1: 0 + 115 = 115
Step 2: 115 + 115 = 230
Step 3: 230 + 115 = 345
Step 4: 345 + 115 = 460
Step 5: 460 + 115 = 575
Step 6: 575 + 115 = 690
Step 7: 690 + 115 = 805
Step 8: 805 + 115 = 920
Step 9: 920 + 115 = 1035
Step 10: 1035 + 115 = 1150
Step 11: 1150 + 115 = 1265
Step 12: 1265 + 115 = 1380
Step 13: 1380 + 115 = 1495
Step 14: 1495 + 115 = 1610
Step 15: 1610 + 115 = 1725
Step 16: 1725 + 115 = 1840
Step 17: 1840 + 115 = 1955
Step 18: 1955 + 115 = 2070
Step 19: 2070 + 115 = 2185
Step 20: 2185 + 115 = 2300
Step 21: 2300 + 115 = 2415
Step 22: 2415 + 115 = 2530
Step 23: 2530 + 115 = 2645
Step 24: 2645 + 115 = 2760
Step 25: 2760 + 115 = 2875
Step 26: 2875 + 115 = 2990
Step 27: 2990 + 115 = 3105
Step 28: 3105 + 115 = 3220
Step 29: 3220 + 115 = 3335
Step 30: 3335 + 115 = 3450
Step 31: 3450 + 115 = 3565
Step 32: 3565 + 115 = 3680
Step 33: 3680 + 115 = 3795
Step 34: 3795 + 115 = 3910
Step 35: 3910 + 115 = 4025
Step 36: 4025 + 115 = 4140
Step 37: 4140 + 115 = 4255
Step 38: 4255 + 115 = 4370
Step 39: 4370 + 115 = 4485
Step 40: 4485 + 115 = 4600
Step 41: 4600 + 115 = 4715
Step 42: 4715 + 115 = 4830
Step 43: 4830 + 115 = 4945
Step 44: 4945 + 115 = 5060
Step 45: 5060 + 115 = 5175
Step 46: 5175 + 115 = 5290
Step 47: 5290 + 115 = 5405
Step 48: 5405 + 115 = 5520
Step 49: 5520 + 115 = 5635
Step 50: 5635 + 115 = 5750
Step 51: 5750 + 115 = 5865
Step 52: 5865 + 115 = 5980
Step 53: 5980 + 115 = 6095
Step 54: 6095 + 115 = 6210
Step 55: 6210 + 115 = 6325
Step 56: 6325 + 115 = 6440
Step 57: 6440 + 115 = 6555
Step 58: 6555 + 115 = 6670
Step 59: 6670 + 115 = 6785
Step 60: 6785 + 115 = 6900
Step 61: 6900 + 115 = 7015
Step 62: 7015 + 115 = 7130
Step 63: 7130 + 115 = 7245
Step 64: 7245 + 115 = 7360
Step 65: 7360 + 115 = 7475
Step 66: 7475 + 115 = 7590
Step 67: 7590 + 115 = 7705
Step 68: 7705 + 115 = 7820
Step 69: 7820 + 115 = 7935
Step 70: 7935 + 115 = 8050
Step 71: 8050 + 115 = 8165
Step 72: 8165 + 115 = 8280
Step 73: 8280 + 115 = 8395
Step 74: 8395 + 115 = 8510
Step 75: 8510 + 115 = 8625
Step 76: 8625 + 115 = 8740
Step 77: 8740 + 115 = 8855
Step 78: 8855 + 115 = 8970
Step 79: 8970 + 115 = 9085
Step 80: 9085 + 115 = 9200
Step 81: 9200 + 115 = 9315
Step 82: 9315 + 115 = 9430
Step 83: 9430 + 115 = 9545
Step 84: 9545 + 115 = 9660
Step 85: 9660 + 115 = 9775
Step 86: 9775 + 115 = 9890
Step 87: 9890 + 115 = 10005
Step 88: 10005 + 115 = 10120
Step 89: 10120 + 115 = 10235
Step 90: 10235 + 115 = 10350
Step 91: 10350 + 115 = 10465
Step 92: 10465 + 115 = 10580
Step 93: 10580 + 115 = 10695
Step 94: 10695 + 115 = 10810
Step 95: 10810 + 115 = 10925
Step 96: 10925 + 115 = 11040
Step 97: 11040 + 115 = 11155
Step 98: 11155 + 115 = 11270
Step 99: 11270 + 115 = 11385
Step 100: 11385 + 115 = 11500
Step 101: 11500 + 115 = 11615
Step 102: 11615 + 115 = 11730
Step 103: 11730 + 115 = 11845
Step 104: 11845 + 115 = 11960
Step 105: 11960 + 115 = 12075
Step 106: 12075 + 115 = 12190
Step 107: 12190 + 115 = 12305
Step 108: 12305 + 115 = 12420
Step 109: 12420 + 115 = 12535
Step 110: 12535 + 115 = 12650
Step 111: 12650 + 115 = 12765
Step 112: 12765 + 115 = 12880
Step 113: 12880 + 115 = 12995
Step 114: 12995 + 115 = 13110
Step 115: 13110 + 115 = 13225
Step 116: 13225 + 115 = 13340
Step 117: 13340 + 115 = 13455
Step 118: 13455 + 115 = 13570
Step 119: 13570 + 115 = 13685
Step 120: 13685 + 115 = 13800
Step 121: 13800 + 115 = 13915
Step 122: 13915 + 115 = 14030
Step 123: 14030 + 115 = 14145
Step 124: 14145 + 115 = 14260
Step 125: 14260 + 115 = 14375
Step 126: 14375 + 115 = 14490
Step 127: 14490 + 115 = 14605
Step 128: 14605 + 115 = 14720
Step 129: 14720 + 115 = 14835
Step 130: 14835 + 115 = 14950
Step 131: 14950 + 115 = 15065
Step 132: 15065 + 115 = 15180
Step 133: 15180 + 115 = 15295
Step 134: 15295 + 115 = 15410
Step 135: 15410 + 115 = 15525
Step 136: 15525 + 115 = 15640
Step 137: 15640 + 115 = 15755
Step 138: 15755 + 115 = 15870
Step 139: 15870 + 115 = 15985
Step 140: 15985 + 115 = 16100
Step 141: 16100 + 115 = 16215
Step 142: 16215 + 115 = 16330
Step 143: 16330 + 115 = 16445
Step 144: 16445 + 115 = 16560
Step 145: 16560 + 115 = 16675
Step 146: 16675 + 115 = 16790
Step 147: 16790 + 115 = 16905
Step 148: 16905 + 115 = 17020
Step 149: 17020 + 115 = 17135
Step 150: 17135 + 115 = 17250
Step 151: 17250 + 115 = 17365
Step 152: 17365 + 115 = 17480
Step 153: 17480 + 115 = 17595
Step 154: 17595 + 115 = 17710
Step 155: 17710 + 115 = 17825
Step 156: 17825 + 115 = 17940
Step 157: 17940 + 115 = 18055
Step 158: 18055 + 115 = 18170
Step 159: 18170 + 115 = 18285
Step 160: 18285 + 115 = 18400
Step 161: 18400 + 115 = 18515
Step 162: 18515 + 115 = 18630
Step 163: 18630 + 115 = 18745
Step 164: 18745 + 115 = 18860
Step 165: 18860 + 115 = 18975
Step 166: 18975 + 115 = 19090
Step 167: 19090 + 115 = 19205
Step 168: 19205 + 115 = 19320
Step 169: 19320 + 115 = 19435
Step 170: 19435 + 115 = 19550
Step 171: 19550 + 115 = 19665
Step 172: 19665 + 115 = 19780
Step 173: 19780 + 115 = 19895
Step 174: 19895 + 115 = 20010
Step 175: 20010 + 115 = 20125
Step 176: 20125 + 115 = 20240
Step 177: 20240 + 115 = 20355
Step 178: 20355 + 115 = 20470
Step 179: 20470 + 115 = 20585
Step 180: 20585 + 115 = 20700
Step 181: 20700 + 115 = 20815
Step 182: 20815 + 115 = 20930
Step 183: 20930 + 115 = 21045
Step 184: 21045 + 115 = 21160
Step 185: 21160 + 115 = 21275
Step 186: 21275 + 115 = 21390
Step 187: 21390 + 115 = 21505
Step 188: 21505 + 115 = 21620
Step 189: 21620 + 115 = 21735
Step 190: 21735 + 115 = 21850

So, 115*190 = 21850