Sure thing! We've got 850 and we're gonna multiply it by 198. That's the same as adding 850 to itself 198 times.
Step 1: 0 + 850 = 850
Step 2: 850 + 850 = 1700
Step 3: 1700 + 850 = 2550
Step 4: 2550 + 850 = 3400
Step 5: 3400 + 850 = 4250
Step 6: 4250 + 850 = 5100
Step 7: 5100 + 850 = 5950
Step 8: 5950 + 850 = 6800
Step 9: 6800 + 850 = 7650
Step 10: 7650 + 850 = 8500
Step 11: 8500 + 850 = 9350
Step 12: 9350 + 850 = 10200
Step 13: 10200 + 850 = 11050
Step 14: 11050 + 850 = 11900
Step 15: 11900 + 850 = 12750
Step 16: 12750 + 850 = 13600
Step 17: 13600 + 850 = 14450
Step 18: 14450 + 850 = 15300
Step 19: 15300 + 850 = 16150
Step 20: 16150 + 850 = 17000
Step 21: 17000 + 850 = 17850
Step 22: 17850 + 850 = 18700
Step 23: 18700 + 850 = 19550
Step 24: 19550 + 850 = 20400
Step 25: 20400 + 850 = 21250
Step 26: 21250 + 850 = 22100
Step 27: 22100 + 850 = 22950
Step 28: 22950 + 850 = 23800
Step 29: 23800 + 850 = 24650
Step 30: 24650 + 850 = 25500
Step 31: 25500 + 850 = 26350
Step 32: 26350 + 850 = 27200
Step 33: 27200 + 850 = 28050
Step 34: 28050 + 850 = 28900
Step 35: 28900 + 850 = 29750
Step 36: 29750 + 850 = 30600
Step 37: 30600 + 850 = 31450
Step 38: 31450 + 850 = 32300
Step 39: 32300 + 850 = 33150
Step 40: 33150 + 850 = 34000
Step 41: 34000 + 850 = 34850
Step 42: 34850 + 850 = 35700
Step 43: 35700 + 850 = 36550
Step 44: 36550 + 850 = 37400
Step 45: 37400 + 850 = 38250
Step 46: 38250 + 850 = 39100
Step 47: 39100 + 850 = 39950
Step 48: 39950 + 850 = 40800
Step 49: 40800 + 850 = 41650
Step 50: 41650 + 850 = 42500
Step 51: 42500 + 850 = 43350
Step 52: 43350 + 850 = 44200
Step 53: 44200 + 850 = 45050
Step 54: 45050 + 850 = 45900
Step 55: 45900 + 850 = 46750
Step 56: 46750 + 850 = 47600
Step 57: 47600 + 850 = 48450
Step 58: 48450 + 850 = 49300
Step 59: 49300 + 850 = 50150
Step 60: 50150 + 850 = 51000
Step 61: 51000 + 850 = 51850
Step 62: 51850 + 850 = 52700
Step 63: 52700 + 850 = 53550
Step 64: 53550 + 850 = 54400
Step 65: 54400 + 850 = 55250
Step 66: 55250 + 850 = 56100
Step 67: 56100 + 850 = 56950
Step 68: 56950 + 850 = 57800
Step 69: 57800 + 850 = 58650
Step 70: 58650 + 850 = 59500
Step 71: 59500 + 850 = 60350
Step 72: 60350 + 850 = 61200
Step 73: 61200 + 850 = 62050
Step 74: 62050 + 850 = 62900
Step 75: 62900 + 850 = 63750
Step 76: 63750 + 850 = 64600
Step 77: 64600 + 850 = 65450
Step 78: 65450 + 850 = 66300
Step 79: 66300 + 850 = 67150
Step 80: 67150 + 850 = 68000
Step 81: 68000 + 850 = 68850
Step 82: 68850 + 850 = 69700
Step 83: 69700 + 850 = 70550
Step 84: 70550 + 850 = 71400
Step 85: 71400 + 850 = 72250
Step 86: 72250 + 850 = 73100
Step 87: 73100 + 850 = 73950
Step 88: 73950 + 850 = 74800
Step 89: 74800 + 850 = 75650
Step 90: 75650 + 850 = 76500
Step 91: 76500 + 850 = 77350
Step 92: 77350 + 850 = 78200
Step 93: 78200 + 850 = 79050
Step 94: 79050 + 850 = 79900
Step 95: 79900 + 850 = 80750
Step 96: 80750 + 850 = 81600
Step 97: 81600 + 850 = 82450
Step 98: 82450 + 850 = 83300
Step 99: 83300 + 850 = 84150
Step 100: 84150 + 850 = 85000
Step 101: 85000 + 850 = 85850
Step 102: 85850 + 850 = 86700
Step 103: 86700 + 850 = 87550
Step 104: 87550 + 850 = 88400
Step 105: 88400 + 850 = 89250
Step 106: 89250 + 850 = 90100
Step 107: 90100 + 850 = 90950
Step 108: 90950 + 850 = 91800
Step 109: 91800 + 850 = 92650
Step 110: 92650 + 850 = 93500
Step 111: 93500 + 850 = 94350
Step 112: 94350 + 850 = 95200
Step 113: 95200 + 850 = 96050
Step 114: 96050 + 850 = 96900
Step 115: 96900 + 850 = 97750
Step 116: 97750 + 850 = 98600
Step 117: 98600 + 850 = 99450
Step 118: 99450 + 850 = 100300
Step 119: 100300 + 850 = 101150
Step 120: 101150 + 850 = 102000
Step 121: 102000 + 850 = 102850
Step 122: 102850 + 850 = 103700
Step 123: 103700 + 850 = 104550
Step 124: 104550 + 850 = 105400
Step 125: 105400 + 850 = 106250
Step 126: 106250 + 850 = 107100
Step 127: 107100 + 850 = 107950
Step 128: 107950 + 850 = 108800
Step 129: 108800 + 850 = 109650
Step 130: 109650 + 850 = 110500
Step 131: 110500 + 850 = 111350
Step 132: 111350 + 850 = 112200
Step 133: 112200 + 850 = 113050
Step 134: 113050 + 850 = 113900
Step 135: 113900 + 850 = 114750
Step 136: 114750 + 850 = 115600
Step 137: 115600 + 850 = 116450
Step 138: 116450 + 850 = 117300
Step 139: 117300 + 850 = 118150
Step 140: 118150 + 850 = 119000
Step 141: 119000 + 850 = 119850
Step 142: 119850 + 850 = 120700
Step 143: 120700 + 850 = 121550
Step 144: 121550 + 850 = 122400
Step 145: 122400 + 850 = 123250
Step 146: 123250 + 850 = 124100
Step 147: 124100 + 850 = 124950
Step 148: 124950 + 850 = 125800
Step 149: 125800 + 850 = 126650
Step 150: 126650 + 850 = 127500
Step 151: 127500 + 850 = 128350
Step 152: 128350 + 850 = 129200
Step 153: 129200 + 850 = 130050
Step 154: 130050 + 850 = 130900
Step 155: 130900 + 850 = 131750
Step 156: 131750 + 850 = 132600
Step 157: 132600 + 850 = 133450
Step 158: 133450 + 850 = 134300
Step 159: 134300 + 850 = 135150
Step 160: 135150 + 850 = 136000
Step 161: 136000 + 850 = 136850
Step 162: 136850 + 850 = 137700
Step 163: 137700 + 850 = 138550
Step 164: 138550 + 850 = 139400
Step 165: 139400 + 850 = 140250
Step 166: 140250 + 850 = 141100
Step 167: 141100 + 850 = 141950
Step 168: 141950 + 850 = 142800
Step 169: 142800 + 850 = 143650
Step 170: 143650 + 850 = 144500
Step 171: 144500 + 850 = 145350
Step 172: 145350 + 850 = 146200
Step 173: 146200 + 850 = 147050
Step 174: 147050 + 850 = 147900
Step 175: 147900 + 850 = 148750
Step 176: 148750 + 850 = 149600
Step 177: 149600 + 850 = 150450
Step 178: 150450 + 850 = 151300
Step 179: 151300 + 850 = 152150
Step 180: 152150 + 850 = 153000
Step 181: 153000 + 850 = 153850
Step 182: 153850 + 850 = 154700
Step 183: 154700 + 850 = 155550
Step 184: 155550 + 850 = 156400
Step 185: 156400 + 850 = 157250
Step 186: 157250 + 850 = 158100
Step 187: 158100 + 850 = 158950
Step 188: 158950 + 850 = 159800
Step 189: 159800 + 850 = 160650
Step 190: 160650 + 850 = 161500
Step 191: 161500 + 850 = 162350
Step 192: 162350 + 850 = 163200
Step 193: 163200 + 850 = 164050
Step 194: 164050 + 850 = 164900
Step 195: 164900 + 850 = 165750
Step 196: 165750 + 850 = 166600
Step 197: 166600 + 850 = 167450
Step 198: 167450 + 850 = 168300

So, 850*198 = 168300