Alright, let's solve this math problem step by step. First, we have the number 170. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 142. So, we're going to take the number 170 and add it to itself 142 times.
Step 1: 0 + 170 = 170
Step 2: 170 + 170 = 340
Step 3: 340 + 170 = 510
Step 4: 510 + 170 = 680
Step 5: 680 + 170 = 850
Step 6: 850 + 170 = 1020
Step 7: 1020 + 170 = 1190
Step 8: 1190 + 170 = 1360
Step 9: 1360 + 170 = 1530
Step 10: 1530 + 170 = 1700
Step 11: 1700 + 170 = 1870
Step 12: 1870 + 170 = 2040
Step 13: 2040 + 170 = 2210
Step 14: 2210 + 170 = 2380
Step 15: 2380 + 170 = 2550
Step 16: 2550 + 170 = 2720
Step 17: 2720 + 170 = 2890
Step 18: 2890 + 170 = 3060
Step 19: 3060 + 170 = 3230
Step 20: 3230 + 170 = 3400
Step 21: 3400 + 170 = 3570
Step 22: 3570 + 170 = 3740
Step 23: 3740 + 170 = 3910
Step 24: 3910 + 170 = 4080
Step 25: 4080 + 170 = 4250
Step 26: 4250 + 170 = 4420
Step 27: 4420 + 170 = 4590
Step 28: 4590 + 170 = 4760
Step 29: 4760 + 170 = 4930
Step 30: 4930 + 170 = 5100
Step 31: 5100 + 170 = 5270
Step 32: 5270 + 170 = 5440
Step 33: 5440 + 170 = 5610
Step 34: 5610 + 170 = 5780
Step 35: 5780 + 170 = 5950
Step 36: 5950 + 170 = 6120
Step 37: 6120 + 170 = 6290
Step 38: 6290 + 170 = 6460
Step 39: 6460 + 170 = 6630
Step 40: 6630 + 170 = 6800
Step 41: 6800 + 170 = 6970
Step 42: 6970 + 170 = 7140
Step 43: 7140 + 170 = 7310
Step 44: 7310 + 170 = 7480
Step 45: 7480 + 170 = 7650
Step 46: 7650 + 170 = 7820
Step 47: 7820 + 170 = 7990
Step 48: 7990 + 170 = 8160
Step 49: 8160 + 170 = 8330
Step 50: 8330 + 170 = 8500
Step 51: 8500 + 170 = 8670
Step 52: 8670 + 170 = 8840
Step 53: 8840 + 170 = 9010
Step 54: 9010 + 170 = 9180
Step 55: 9180 + 170 = 9350
Step 56: 9350 + 170 = 9520
Step 57: 9520 + 170 = 9690
Step 58: 9690 + 170 = 9860
Step 59: 9860 + 170 = 10030
Step 60: 10030 + 170 = 10200
Step 61: 10200 + 170 = 10370
Step 62: 10370 + 170 = 10540
Step 63: 10540 + 170 = 10710
Step 64: 10710 + 170 = 10880
Step 65: 10880 + 170 = 11050
Step 66: 11050 + 170 = 11220
Step 67: 11220 + 170 = 11390
Step 68: 11390 + 170 = 11560
Step 69: 11560 + 170 = 11730
Step 70: 11730 + 170 = 11900
Step 71: 11900 + 170 = 12070
Step 72: 12070 + 170 = 12240
Step 73: 12240 + 170 = 12410
Step 74: 12410 + 170 = 12580
Step 75: 12580 + 170 = 12750
Step 76: 12750 + 170 = 12920
Step 77: 12920 + 170 = 13090
Step 78: 13090 + 170 = 13260
Step 79: 13260 + 170 = 13430
Step 80: 13430 + 170 = 13600
Step 81: 13600 + 170 = 13770
Step 82: 13770 + 170 = 13940
Step 83: 13940 + 170 = 14110
Step 84: 14110 + 170 = 14280
Step 85: 14280 + 170 = 14450
Step 86: 14450 + 170 = 14620
Step 87: 14620 + 170 = 14790
Step 88: 14790 + 170 = 14960
Step 89: 14960 + 170 = 15130
Step 90: 15130 + 170 = 15300
Step 91: 15300 + 170 = 15470
Step 92: 15470 + 170 = 15640
Step 93: 15640 + 170 = 15810
Step 94: 15810 + 170 = 15980
Step 95: 15980 + 170 = 16150
Step 96: 16150 + 170 = 16320
Step 97: 16320 + 170 = 16490
Step 98: 16490 + 170 = 16660
Step 99: 16660 + 170 = 16830
Step 100: 16830 + 170 = 17000
Step 101: 17000 + 170 = 17170
Step 102: 17170 + 170 = 17340
Step 103: 17340 + 170 = 17510
Step 104: 17510 + 170 = 17680
Step 105: 17680 + 170 = 17850
Step 106: 17850 + 170 = 18020
Step 107: 18020 + 170 = 18190
Step 108: 18190 + 170 = 18360
Step 109: 18360 + 170 = 18530
Step 110: 18530 + 170 = 18700
Step 111: 18700 + 170 = 18870
Step 112: 18870 + 170 = 19040
Step 113: 19040 + 170 = 19210
Step 114: 19210 + 170 = 19380
Step 115: 19380 + 170 = 19550
Step 116: 19550 + 170 = 19720
Step 117: 19720 + 170 = 19890
Step 118: 19890 + 170 = 20060
Step 119: 20060 + 170 = 20230
Step 120: 20230 + 170 = 20400
Step 121: 20400 + 170 = 20570
Step 122: 20570 + 170 = 20740
Step 123: 20740 + 170 = 20910
Step 124: 20910 + 170 = 21080
Step 125: 21080 + 170 = 21250
Step 126: 21250 + 170 = 21420
Step 127: 21420 + 170 = 21590
Step 128: 21590 + 170 = 21760
Step 129: 21760 + 170 = 21930
Step 130: 21930 + 170 = 22100
Step 131: 22100 + 170 = 22270
Step 132: 22270 + 170 = 22440
Step 133: 22440 + 170 = 22610
Step 134: 22610 + 170 = 22780
Step 135: 22780 + 170 = 22950
Step 136: 22950 + 170 = 23120
Step 137: 23120 + 170 = 23290
Step 138: 23290 + 170 = 23460
Step 139: 23460 + 170 = 23630
Step 140: 23630 + 170 = 23800
Step 141: 23800 + 170 = 23970
Step 142: 23970 + 170 = 24140

So, 170*142 = 24140