OK, let's work through this together. We're starting with 430 and we're going to multiply it by 259, which means we add 430 to itself 259 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
Step 88: 37410 + 430 = 37840
Step 89: 37840 + 430 = 38270
Step 90: 38270 + 430 = 38700
Step 91: 38700 + 430 = 39130
Step 92: 39130 + 430 = 39560
Step 93: 39560 + 430 = 39990
Step 94: 39990 + 430 = 40420
Step 95: 40420 + 430 = 40850
Step 96: 40850 + 430 = 41280
Step 97: 41280 + 430 = 41710
Step 98: 41710 + 430 = 42140
Step 99: 42140 + 430 = 42570
Step 100: 42570 + 430 = 43000
Step 101: 43000 + 430 = 43430
Step 102: 43430 + 430 = 43860
Step 103: 43860 + 430 = 44290
Step 104: 44290 + 430 = 44720
Step 105: 44720 + 430 = 45150
Step 106: 45150 + 430 = 45580
Step 107: 45580 + 430 = 46010
Step 108: 46010 + 430 = 46440
Step 109: 46440 + 430 = 46870
Step 110: 46870 + 430 = 47300
Step 111: 47300 + 430 = 47730
Step 112: 47730 + 430 = 48160
Step 113: 48160 + 430 = 48590
Step 114: 48590 + 430 = 49020
Step 115: 49020 + 430 = 49450
Step 116: 49450 + 430 = 49880
Step 117: 49880 + 430 = 50310
Step 118: 50310 + 430 = 50740
Step 119: 50740 + 430 = 51170
Step 120: 51170 + 430 = 51600
Step 121: 51600 + 430 = 52030
Step 122: 52030 + 430 = 52460
Step 123: 52460 + 430 = 52890
Step 124: 52890 + 430 = 53320
Step 125: 53320 + 430 = 53750
Step 126: 53750 + 430 = 54180
Step 127: 54180 + 430 = 54610
Step 128: 54610 + 430 = 55040
Step 129: 55040 + 430 = 55470
Step 130: 55470 + 430 = 55900
Step 131: 55900 + 430 = 56330
Step 132: 56330 + 430 = 56760
Step 133: 56760 + 430 = 57190
Step 134: 57190 + 430 = 57620
Step 135: 57620 + 430 = 58050
Step 136: 58050 + 430 = 58480
Step 137: 58480 + 430 = 58910
Step 138: 58910 + 430 = 59340
Step 139: 59340 + 430 = 59770
Step 140: 59770 + 430 = 60200
Step 141: 60200 + 430 = 60630
Step 142: 60630 + 430 = 61060
Step 143: 61060 + 430 = 61490
Step 144: 61490 + 430 = 61920
Step 145: 61920 + 430 = 62350
Step 146: 62350 + 430 = 62780
Step 147: 62780 + 430 = 63210
Step 148: 63210 + 430 = 63640
Step 149: 63640 + 430 = 64070
Step 150: 64070 + 430 = 64500
Step 151: 64500 + 430 = 64930
Step 152: 64930 + 430 = 65360
Step 153: 65360 + 430 = 65790
Step 154: 65790 + 430 = 66220
Step 155: 66220 + 430 = 66650
Step 156: 66650 + 430 = 67080
Step 157: 67080 + 430 = 67510
Step 158: 67510 + 430 = 67940
Step 159: 67940 + 430 = 68370
Step 160: 68370 + 430 = 68800
Step 161: 68800 + 430 = 69230
Step 162: 69230 + 430 = 69660
Step 163: 69660 + 430 = 70090
Step 164: 70090 + 430 = 70520
Step 165: 70520 + 430 = 70950
Step 166: 70950 + 430 = 71380
Step 167: 71380 + 430 = 71810
Step 168: 71810 + 430 = 72240
Step 169: 72240 + 430 = 72670
Step 170: 72670 + 430 = 73100
Step 171: 73100 + 430 = 73530
Step 172: 73530 + 430 = 73960
Step 173: 73960 + 430 = 74390
Step 174: 74390 + 430 = 74820
Step 175: 74820 + 430 = 75250
Step 176: 75250 + 430 = 75680
Step 177: 75680 + 430 = 76110
Step 178: 76110 + 430 = 76540
Step 179: 76540 + 430 = 76970
Step 180: 76970 + 430 = 77400
Step 181: 77400 + 430 = 77830
Step 182: 77830 + 430 = 78260
Step 183: 78260 + 430 = 78690
Step 184: 78690 + 430 = 79120
Step 185: 79120 + 430 = 79550
Step 186: 79550 + 430 = 79980
Step 187: 79980 + 430 = 80410
Step 188: 80410 + 430 = 80840
Step 189: 80840 + 430 = 81270
Step 190: 81270 + 430 = 81700
Step 191: 81700 + 430 = 82130
Step 192: 82130 + 430 = 82560
Step 193: 82560 + 430 = 82990
Step 194: 82990 + 430 = 83420
Step 195: 83420 + 430 = 83850
Step 196: 83850 + 430 = 84280
Step 197: 84280 + 430 = 84710
Step 198: 84710 + 430 = 85140
Step 199: 85140 + 430 = 85570
Step 200: 85570 + 430 = 86000
Step 201: 86000 + 430 = 86430
Step 202: 86430 + 430 = 86860
Step 203: 86860 + 430 = 87290
Step 204: 87290 + 430 = 87720
Step 205: 87720 + 430 = 88150
Step 206: 88150 + 430 = 88580
Step 207: 88580 + 430 = 89010
Step 208: 89010 + 430 = 89440
Step 209: 89440 + 430 = 89870
Step 210: 89870 + 430 = 90300
Step 211: 90300 + 430 = 90730
Step 212: 90730 + 430 = 91160
Step 213: 91160 + 430 = 91590
Step 214: 91590 + 430 = 92020
Step 215: 92020 + 430 = 92450
Step 216: 92450 + 430 = 92880
Step 217: 92880 + 430 = 93310
Step 218: 93310 + 430 = 93740
Step 219: 93740 + 430 = 94170
Step 220: 94170 + 430 = 94600
Step 221: 94600 + 430 = 95030
Step 222: 95030 + 430 = 95460
Step 223: 95460 + 430 = 95890
Step 224: 95890 + 430 = 96320
Step 225: 96320 + 430 = 96750
Step 226: 96750 + 430 = 97180
Step 227: 97180 + 430 = 97610
Step 228: 97610 + 430 = 98040
Step 229: 98040 + 430 = 98470
Step 230: 98470 + 430 = 98900
Step 231: 98900 + 430 = 99330
Step 232: 99330 + 430 = 99760
Step 233: 99760 + 430 = 100190
Step 234: 100190 + 430 = 100620
Step 235: 100620 + 430 = 101050
Step 236: 101050 + 430 = 101480
Step 237: 101480 + 430 = 101910
Step 238: 101910 + 430 = 102340
Step 239: 102340 + 430 = 102770
Step 240: 102770 + 430 = 103200
Step 241: 103200 + 430 = 103630
Step 242: 103630 + 430 = 104060
Step 243: 104060 + 430 = 104490
Step 244: 104490 + 430 = 104920
Step 245: 104920 + 430 = 105350
Step 246: 105350 + 430 = 105780
Step 247: 105780 + 430 = 106210
Step 248: 106210 + 430 = 106640
Step 249: 106640 + 430 = 107070
Step 250: 107070 + 430 = 107500
Step 251: 107500 + 430 = 107930
Step 252: 107930 + 430 = 108360
Step 253: 108360 + 430 = 108790
Step 254: 108790 + 430 = 109220
Step 255: 109220 + 430 = 109650
Step 256: 109650 + 430 = 110080
Step 257: 110080 + 430 = 110510
Step 258: 110510 + 430 = 110940
Step 259: 110940 + 430 = 111370

So, 430*259 = 111370