Sure thing, let's get straight to it. We start with 430 and we're going to multiply it by 87, which means adding 430 to itself 87 times.
Step 1: 0 + 430 = 430
Step 2: 430 + 430 = 860
Step 3: 860 + 430 = 1290
Step 4: 1290 + 430 = 1720
Step 5: 1720 + 430 = 2150
Step 6: 2150 + 430 = 2580
Step 7: 2580 + 430 = 3010
Step 8: 3010 + 430 = 3440
Step 9: 3440 + 430 = 3870
Step 10: 3870 + 430 = 4300
Step 11: 4300 + 430 = 4730
Step 12: 4730 + 430 = 5160
Step 13: 5160 + 430 = 5590
Step 14: 5590 + 430 = 6020
Step 15: 6020 + 430 = 6450
Step 16: 6450 + 430 = 6880
Step 17: 6880 + 430 = 7310
Step 18: 7310 + 430 = 7740
Step 19: 7740 + 430 = 8170
Step 20: 8170 + 430 = 8600
Step 21: 8600 + 430 = 9030
Step 22: 9030 + 430 = 9460
Step 23: 9460 + 430 = 9890
Step 24: 9890 + 430 = 10320
Step 25: 10320 + 430 = 10750
Step 26: 10750 + 430 = 11180
Step 27: 11180 + 430 = 11610
Step 28: 11610 + 430 = 12040
Step 29: 12040 + 430 = 12470
Step 30: 12470 + 430 = 12900
Step 31: 12900 + 430 = 13330
Step 32: 13330 + 430 = 13760
Step 33: 13760 + 430 = 14190
Step 34: 14190 + 430 = 14620
Step 35: 14620 + 430 = 15050
Step 36: 15050 + 430 = 15480
Step 37: 15480 + 430 = 15910
Step 38: 15910 + 430 = 16340
Step 39: 16340 + 430 = 16770
Step 40: 16770 + 430 = 17200
Step 41: 17200 + 430 = 17630
Step 42: 17630 + 430 = 18060
Step 43: 18060 + 430 = 18490
Step 44: 18490 + 430 = 18920
Step 45: 18920 + 430 = 19350
Step 46: 19350 + 430 = 19780
Step 47: 19780 + 430 = 20210
Step 48: 20210 + 430 = 20640
Step 49: 20640 + 430 = 21070
Step 50: 21070 + 430 = 21500
Step 51: 21500 + 430 = 21930
Step 52: 21930 + 430 = 22360
Step 53: 22360 + 430 = 22790
Step 54: 22790 + 430 = 23220
Step 55: 23220 + 430 = 23650
Step 56: 23650 + 430 = 24080
Step 57: 24080 + 430 = 24510
Step 58: 24510 + 430 = 24940
Step 59: 24940 + 430 = 25370
Step 60: 25370 + 430 = 25800
Step 61: 25800 + 430 = 26230
Step 62: 26230 + 430 = 26660
Step 63: 26660 + 430 = 27090
Step 64: 27090 + 430 = 27520
Step 65: 27520 + 430 = 27950
Step 66: 27950 + 430 = 28380
Step 67: 28380 + 430 = 28810
Step 68: 28810 + 430 = 29240
Step 69: 29240 + 430 = 29670
Step 70: 29670 + 430 = 30100
Step 71: 30100 + 430 = 30530
Step 72: 30530 + 430 = 30960
Step 73: 30960 + 430 = 31390
Step 74: 31390 + 430 = 31820
Step 75: 31820 + 430 = 32250
Step 76: 32250 + 430 = 32680
Step 77: 32680 + 430 = 33110
Step 78: 33110 + 430 = 33540
Step 79: 33540 + 430 = 33970
Step 80: 33970 + 430 = 34400
Step 81: 34400 + 430 = 34830
Step 82: 34830 + 430 = 35260
Step 83: 35260 + 430 = 35690
Step 84: 35690 + 430 = 36120
Step 85: 36120 + 430 = 36550
Step 86: 36550 + 430 = 36980
Step 87: 36980 + 430 = 37410

So, 430*87 = 37410