OK, let's crack this. We're given 260 and our task is to multiply it by 339. Essentially, we'll be adding 260 to itself 339 times.
Step 1: 0 + 260 = 260
Step 2: 260 + 260 = 520
Step 3: 520 + 260 = 780
Step 4: 780 + 260 = 1040
Step 5: 1040 + 260 = 1300
Step 6: 1300 + 260 = 1560
Step 7: 1560 + 260 = 1820
Step 8: 1820 + 260 = 2080
Step 9: 2080 + 260 = 2340
Step 10: 2340 + 260 = 2600
Step 11: 2600 + 260 = 2860
Step 12: 2860 + 260 = 3120
Step 13: 3120 + 260 = 3380
Step 14: 3380 + 260 = 3640
Step 15: 3640 + 260 = 3900
Step 16: 3900 + 260 = 4160
Step 17: 4160 + 260 = 4420
Step 18: 4420 + 260 = 4680
Step 19: 4680 + 260 = 4940
Step 20: 4940 + 260 = 5200
Step 21: 5200 + 260 = 5460
Step 22: 5460 + 260 = 5720
Step 23: 5720 + 260 = 5980
Step 24: 5980 + 260 = 6240
Step 25: 6240 + 260 = 6500
Step 26: 6500 + 260 = 6760
Step 27: 6760 + 260 = 7020
Step 28: 7020 + 260 = 7280
Step 29: 7280 + 260 = 7540
Step 30: 7540 + 260 = 7800
Step 31: 7800 + 260 = 8060
Step 32: 8060 + 260 = 8320
Step 33: 8320 + 260 = 8580
Step 34: 8580 + 260 = 8840
Step 35: 8840 + 260 = 9100
Step 36: 9100 + 260 = 9360
Step 37: 9360 + 260 = 9620
Step 38: 9620 + 260 = 9880
Step 39: 9880 + 260 = 10140
Step 40: 10140 + 260 = 10400
Step 41: 10400 + 260 = 10660
Step 42: 10660 + 260 = 10920
Step 43: 10920 + 260 = 11180
Step 44: 11180 + 260 = 11440
Step 45: 11440 + 260 = 11700
Step 46: 11700 + 260 = 11960
Step 47: 11960 + 260 = 12220
Step 48: 12220 + 260 = 12480
Step 49: 12480 + 260 = 12740
Step 50: 12740 + 260 = 13000
Step 51: 13000 + 260 = 13260
Step 52: 13260 + 260 = 13520
Step 53: 13520 + 260 = 13780
Step 54: 13780 + 260 = 14040
Step 55: 14040 + 260 = 14300
Step 56: 14300 + 260 = 14560
Step 57: 14560 + 260 = 14820
Step 58: 14820 + 260 = 15080
Step 59: 15080 + 260 = 15340
Step 60: 15340 + 260 = 15600
Step 61: 15600 + 260 = 15860
Step 62: 15860 + 260 = 16120
Step 63: 16120 + 260 = 16380
Step 64: 16380 + 260 = 16640
Step 65: 16640 + 260 = 16900
Step 66: 16900 + 260 = 17160
Step 67: 17160 + 260 = 17420
Step 68: 17420 + 260 = 17680
Step 69: 17680 + 260 = 17940
Step 70: 17940 + 260 = 18200
Step 71: 18200 + 260 = 18460
Step 72: 18460 + 260 = 18720
Step 73: 18720 + 260 = 18980
Step 74: 18980 + 260 = 19240
Step 75: 19240 + 260 = 19500
Step 76: 19500 + 260 = 19760
Step 77: 19760 + 260 = 20020
Step 78: 20020 + 260 = 20280
Step 79: 20280 + 260 = 20540
Step 80: 20540 + 260 = 20800
Step 81: 20800 + 260 = 21060
Step 82: 21060 + 260 = 21320
Step 83: 21320 + 260 = 21580
Step 84: 21580 + 260 = 21840
Step 85: 21840 + 260 = 22100
Step 86: 22100 + 260 = 22360
Step 87: 22360 + 260 = 22620
Step 88: 22620 + 260 = 22880
Step 89: 22880 + 260 = 23140
Step 90: 23140 + 260 = 23400
Step 91: 23400 + 260 = 23660
Step 92: 23660 + 260 = 23920
Step 93: 23920 + 260 = 24180
Step 94: 24180 + 260 = 24440
Step 95: 24440 + 260 = 24700
Step 96: 24700 + 260 = 24960
Step 97: 24960 + 260 = 25220
Step 98: 25220 + 260 = 25480
Step 99: 25480 + 260 = 25740
Step 100: 25740 + 260 = 26000
Step 101: 26000 + 260 = 26260
Step 102: 26260 + 260 = 26520
Step 103: 26520 + 260 = 26780
Step 104: 26780 + 260 = 27040
Step 105: 27040 + 260 = 27300
Step 106: 27300 + 260 = 27560
Step 107: 27560 + 260 = 27820
Step 108: 27820 + 260 = 28080
Step 109: 28080 + 260 = 28340
Step 110: 28340 + 260 = 28600
Step 111: 28600 + 260 = 28860
Step 112: 28860 + 260 = 29120
Step 113: 29120 + 260 = 29380
Step 114: 29380 + 260 = 29640
Step 115: 29640 + 260 = 29900
Step 116: 29900 + 260 = 30160
Step 117: 30160 + 260 = 30420
Step 118: 30420 + 260 = 30680
Step 119: 30680 + 260 = 30940
Step 120: 30940 + 260 = 31200
Step 121: 31200 + 260 = 31460
Step 122: 31460 + 260 = 31720
Step 123: 31720 + 260 = 31980
Step 124: 31980 + 260 = 32240
Step 125: 32240 + 260 = 32500
Step 126: 32500 + 260 = 32760
Step 127: 32760 + 260 = 33020
Step 128: 33020 + 260 = 33280
Step 129: 33280 + 260 = 33540
Step 130: 33540 + 260 = 33800
Step 131: 33800 + 260 = 34060
Step 132: 34060 + 260 = 34320
Step 133: 34320 + 260 = 34580
Step 134: 34580 + 260 = 34840
Step 135: 34840 + 260 = 35100
Step 136: 35100 + 260 = 35360
Step 137: 35360 + 260 = 35620
Step 138: 35620 + 260 = 35880
Step 139: 35880 + 260 = 36140
Step 140: 36140 + 260 = 36400
Step 141: 36400 + 260 = 36660
Step 142: 36660 + 260 = 36920
Step 143: 36920 + 260 = 37180
Step 144: 37180 + 260 = 37440
Step 145: 37440 + 260 = 37700
Step 146: 37700 + 260 = 37960
Step 147: 37960 + 260 = 38220
Step 148: 38220 + 260 = 38480
Step 149: 38480 + 260 = 38740
Step 150: 38740 + 260 = 39000
Step 151: 39000 + 260 = 39260
Step 152: 39260 + 260 = 39520
Step 153: 39520 + 260 = 39780
Step 154: 39780 + 260 = 40040
Step 155: 40040 + 260 = 40300
Step 156: 40300 + 260 = 40560
Step 157: 40560 + 260 = 40820
Step 158: 40820 + 260 = 41080
Step 159: 41080 + 260 = 41340
Step 160: 41340 + 260 = 41600
Step 161: 41600 + 260 = 41860
Step 162: 41860 + 260 = 42120
Step 163: 42120 + 260 = 42380
Step 164: 42380 + 260 = 42640
Step 165: 42640 + 260 = 42900
Step 166: 42900 + 260 = 43160
Step 167: 43160 + 260 = 43420
Step 168: 43420 + 260 = 43680
Step 169: 43680 + 260 = 43940
Step 170: 43940 + 260 = 44200
Step 171: 44200 + 260 = 44460
Step 172: 44460 + 260 = 44720
Step 173: 44720 + 260 = 44980
Step 174: 44980 + 260 = 45240
Step 175: 45240 + 260 = 45500
Step 176: 45500 + 260 = 45760
Step 177: 45760 + 260 = 46020
Step 178: 46020 + 260 = 46280
Step 179: 46280 + 260 = 46540
Step 180: 46540 + 260 = 46800
Step 181: 46800 + 260 = 47060
Step 182: 47060 + 260 = 47320
Step 183: 47320 + 260 = 47580
Step 184: 47580 + 260 = 47840
Step 185: 47840 + 260 = 48100
Step 186: 48100 + 260 = 48360
Step 187: 48360 + 260 = 48620
Step 188: 48620 + 260 = 48880
Step 189: 48880 + 260 = 49140
Step 190: 49140 + 260 = 49400
Step 191: 49400 + 260 = 49660
Step 192: 49660 + 260 = 49920
Step 193: 49920 + 260 = 50180
Step 194: 50180 + 260 = 50440
Step 195: 50440 + 260 = 50700
Step 196: 50700 + 260 = 50960
Step 197: 50960 + 260 = 51220
Step 198: 51220 + 260 = 51480
Step 199: 51480 + 260 = 51740
Step 200: 51740 + 260 = 52000
Step 201: 52000 + 260 = 52260
Step 202: 52260 + 260 = 52520
Step 203: 52520 + 260 = 52780
Step 204: 52780 + 260 = 53040
Step 205: 53040 + 260 = 53300
Step 206: 53300 + 260 = 53560
Step 207: 53560 + 260 = 53820
Step 208: 53820 + 260 = 54080
Step 209: 54080 + 260 = 54340
Step 210: 54340 + 260 = 54600
Step 211: 54600 + 260 = 54860
Step 212: 54860 + 260 = 55120
Step 213: 55120 + 260 = 55380
Step 214: 55380 + 260 = 55640
Step 215: 55640 + 260 = 55900
Step 216: 55900 + 260 = 56160
Step 217: 56160 + 260 = 56420
Step 218: 56420 + 260 = 56680
Step 219: 56680 + 260 = 56940
Step 220: 56940 + 260 = 57200
Step 221: 57200 + 260 = 57460
Step 222: 57460 + 260 = 57720
Step 223: 57720 + 260 = 57980
Step 224: 57980 + 260 = 58240
Step 225: 58240 + 260 = 58500
Step 226: 58500 + 260 = 58760
Step 227: 58760 + 260 = 59020
Step 228: 59020 + 260 = 59280
Step 229: 59280 + 260 = 59540
Step 230: 59540 + 260 = 59800
Step 231: 59800 + 260 = 60060
Step 232: 60060 + 260 = 60320
Step 233: 60320 + 260 = 60580
Step 234: 60580 + 260 = 60840
Step 235: 60840 + 260 = 61100
Step 236: 61100 + 260 = 61360
Step 237: 61360 + 260 = 61620
Step 238: 61620 + 260 = 61880
Step 239: 61880 + 260 = 62140
Step 240: 62140 + 260 = 62400
Step 241: 62400 + 260 = 62660
Step 242: 62660 + 260 = 62920
Step 243: 62920 + 260 = 63180
Step 244: 63180 + 260 = 63440
Step 245: 63440 + 260 = 63700
Step 246: 63700 + 260 = 63960
Step 247: 63960 + 260 = 64220
Step 248: 64220 + 260 = 64480
Step 249: 64480 + 260 = 64740
Step 250: 64740 + 260 = 65000
Step 251: 65000 + 260 = 65260
Step 252: 65260 + 260 = 65520
Step 253: 65520 + 260 = 65780
Step 254: 65780 + 260 = 66040
Step 255: 66040 + 260 = 66300
Step 256: 66300 + 260 = 66560
Step 257: 66560 + 260 = 66820
Step 258: 66820 + 260 = 67080
Step 259: 67080 + 260 = 67340
Step 260: 67340 + 260 = 67600
Step 261: 67600 + 260 = 67860
Step 262: 67860 + 260 = 68120
Step 263: 68120 + 260 = 68380
Step 264: 68380 + 260 = 68640
Step 265: 68640 + 260 = 68900
Step 266: 68900 + 260 = 69160
Step 267: 69160 + 260 = 69420
Step 268: 69420 + 260 = 69680
Step 269: 69680 + 260 = 69940
Step 270: 69940 + 260 = 70200
Step 271: 70200 + 260 = 70460
Step 272: 70460 + 260 = 70720
Step 273: 70720 + 260 = 70980
Step 274: 70980 + 260 = 71240
Step 275: 71240 + 260 = 71500
Step 276: 71500 + 260 = 71760
Step 277: 71760 + 260 = 72020
Step 278: 72020 + 260 = 72280
Step 279: 72280 + 260 = 72540
Step 280: 72540 + 260 = 72800
Step 281: 72800 + 260 = 73060
Step 282: 73060 + 260 = 73320
Step 283: 73320 + 260 = 73580
Step 284: 73580 + 260 = 73840
Step 285: 73840 + 260 = 74100
Step 286: 74100 + 260 = 74360
Step 287: 74360 + 260 = 74620
Step 288: 74620 + 260 = 74880
Step 289: 74880 + 260 = 75140
Step 290: 75140 + 260 = 75400
Step 291: 75400 + 260 = 75660
Step 292: 75660 + 260 = 75920
Step 293: 75920 + 260 = 76180
Step 294: 76180 + 260 = 76440
Step 295: 76440 + 260 = 76700
Step 296: 76700 + 260 = 76960
Step 297: 76960 + 260 = 77220
Step 298: 77220 + 260 = 77480
Step 299: 77480 + 260 = 77740
Step 300: 77740 + 260 = 78000
Step 301: 78000 + 260 = 78260
Step 302: 78260 + 260 = 78520
Step 303: 78520 + 260 = 78780
Step 304: 78780 + 260 = 79040
Step 305: 79040 + 260 = 79300
Step 306: 79300 + 260 = 79560
Step 307: 79560 + 260 = 79820
Step 308: 79820 + 260 = 80080
Step 309: 80080 + 260 = 80340
Step 310: 80340 + 260 = 80600
Step 311: 80600 + 260 = 80860
Step 312: 80860 + 260 = 81120
Step 313: 81120 + 260 = 81380
Step 314: 81380 + 260 = 81640
Step 315: 81640 + 260 = 81900
Step 316: 81900 + 260 = 82160
Step 317: 82160 + 260 = 82420
Step 318: 82420 + 260 = 82680
Step 319: 82680 + 260 = 82940
Step 320: 82940 + 260 = 83200
Step 321: 83200 + 260 = 83460
Step 322: 83460 + 260 = 83720
Step 323: 83720 + 260 = 83980
Step 324: 83980 + 260 = 84240
Step 325: 84240 + 260 = 84500
Step 326: 84500 + 260 = 84760
Step 327: 84760 + 260 = 85020
Step 328: 85020 + 260 = 85280
Step 329: 85280 + 260 = 85540
Step 330: 85540 + 260 = 85800
Step 331: 85800 + 260 = 86060
Step 332: 86060 + 260 = 86320
Step 333: 86320 + 260 = 86580
Step 334: 86580 + 260 = 86840
Step 335: 86840 + 260 = 87100
Step 336: 87100 + 260 = 87360
Step 337: 87360 + 260 = 87620
Step 338: 87620 + 260 = 87880
Step 339: 87880 + 260 = 88140

So, 260*339 = 88140