Alright, let's solve this math problem step by step. First, we have the number 850. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 169. So, we're going to take the number 850 and add it to itself 169 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

So, 850*169 = 143650