Let's roll up our sleeves and solve this. We have 615 and we're going to multiply it by 490, essentially adding 615 to itself 490 times.
Step 1: 0 + 615 = 615
Step 2: 615 + 615 = 1230
Step 3: 1230 + 615 = 1845
Step 4: 1845 + 615 = 2460
Step 5: 2460 + 615 = 3075
Step 6: 3075 + 615 = 3690
Step 7: 3690 + 615 = 4305
Step 8: 4305 + 615 = 4920
Step 9: 4920 + 615 = 5535
Step 10: 5535 + 615 = 6150
Step 11: 6150 + 615 = 6765
Step 12: 6765 + 615 = 7380
Step 13: 7380 + 615 = 7995
Step 14: 7995 + 615 = 8610
Step 15: 8610 + 615 = 9225
Step 16: 9225 + 615 = 9840
Step 17: 9840 + 615 = 10455
Step 18: 10455 + 615 = 11070
Step 19: 11070 + 615 = 11685
Step 20: 11685 + 615 = 12300
Step 21: 12300 + 615 = 12915
Step 22: 12915 + 615 = 13530
Step 23: 13530 + 615 = 14145
Step 24: 14145 + 615 = 14760
Step 25: 14760 + 615 = 15375
Step 26: 15375 + 615 = 15990
Step 27: 15990 + 615 = 16605
Step 28: 16605 + 615 = 17220
Step 29: 17220 + 615 = 17835
Step 30: 17835 + 615 = 18450
Step 31: 18450 + 615 = 19065
Step 32: 19065 + 615 = 19680
Step 33: 19680 + 615 = 20295
Step 34: 20295 + 615 = 20910
Step 35: 20910 + 615 = 21525
Step 36: 21525 + 615 = 22140
Step 37: 22140 + 615 = 22755
Step 38: 22755 + 615 = 23370
Step 39: 23370 + 615 = 23985
Step 40: 23985 + 615 = 24600
Step 41: 24600 + 615 = 25215
Step 42: 25215 + 615 = 25830
Step 43: 25830 + 615 = 26445
Step 44: 26445 + 615 = 27060
Step 45: 27060 + 615 = 27675
Step 46: 27675 + 615 = 28290
Step 47: 28290 + 615 = 28905
Step 48: 28905 + 615 = 29520
Step 49: 29520 + 615 = 30135
Step 50: 30135 + 615 = 30750
Step 51: 30750 + 615 = 31365
Step 52: 31365 + 615 = 31980
Step 53: 31980 + 615 = 32595
Step 54: 32595 + 615 = 33210
Step 55: 33210 + 615 = 33825
Step 56: 33825 + 615 = 34440
Step 57: 34440 + 615 = 35055
Step 58: 35055 + 615 = 35670
Step 59: 35670 + 615 = 36285
Step 60: 36285 + 615 = 36900
Step 61: 36900 + 615 = 37515
Step 62: 37515 + 615 = 38130
Step 63: 38130 + 615 = 38745
Step 64: 38745 + 615 = 39360
Step 65: 39360 + 615 = 39975
Step 66: 39975 + 615 = 40590
Step 67: 40590 + 615 = 41205
Step 68: 41205 + 615 = 41820
Step 69: 41820 + 615 = 42435
Step 70: 42435 + 615 = 43050
Step 71: 43050 + 615 = 43665
Step 72: 43665 + 615 = 44280
Step 73: 44280 + 615 = 44895
Step 74: 44895 + 615 = 45510
Step 75: 45510 + 615 = 46125
Step 76: 46125 + 615 = 46740
Step 77: 46740 + 615 = 47355
Step 78: 47355 + 615 = 47970
Step 79: 47970 + 615 = 48585
Step 80: 48585 + 615 = 49200
Step 81: 49200 + 615 = 49815
Step 82: 49815 + 615 = 50430
Step 83: 50430 + 615 = 51045
Step 84: 51045 + 615 = 51660
Step 85: 51660 + 615 = 52275
Step 86: 52275 + 615 = 52890
Step 87: 52890 + 615 = 53505
Step 88: 53505 + 615 = 54120
Step 89: 54120 + 615 = 54735
Step 90: 54735 + 615 = 55350
Step 91: 55350 + 615 = 55965
Step 92: 55965 + 615 = 56580
Step 93: 56580 + 615 = 57195
Step 94: 57195 + 615 = 57810
Step 95: 57810 + 615 = 58425
Step 96: 58425 + 615 = 59040
Step 97: 59040 + 615 = 59655
Step 98: 59655 + 615 = 60270
Step 99: 60270 + 615 = 60885
Step 100: 60885 + 615 = 61500
Step 101: 61500 + 615 = 62115
Step 102: 62115 + 615 = 62730
Step 103: 62730 + 615 = 63345
Step 104: 63345 + 615 = 63960
Step 105: 63960 + 615 = 64575
Step 106: 64575 + 615 = 65190
Step 107: 65190 + 615 = 65805
Step 108: 65805 + 615 = 66420
Step 109: 66420 + 615 = 67035
Step 110: 67035 + 615 = 67650
Step 111: 67650 + 615 = 68265
Step 112: 68265 + 615 = 68880
Step 113: 68880 + 615 = 69495
Step 114: 69495 + 615 = 70110
Step 115: 70110 + 615 = 70725
Step 116: 70725 + 615 = 71340
Step 117: 71340 + 615 = 71955
Step 118: 71955 + 615 = 72570
Step 119: 72570 + 615 = 73185
Step 120: 73185 + 615 = 73800
Step 121: 73800 + 615 = 74415
Step 122: 74415 + 615 = 75030
Step 123: 75030 + 615 = 75645
Step 124: 75645 + 615 = 76260
Step 125: 76260 + 615 = 76875
Step 126: 76875 + 615 = 77490
Step 127: 77490 + 615 = 78105
Step 128: 78105 + 615 = 78720
Step 129: 78720 + 615 = 79335
Step 130: 79335 + 615 = 79950
Step 131: 79950 + 615 = 80565
Step 132: 80565 + 615 = 81180
Step 133: 81180 + 615 = 81795
Step 134: 81795 + 615 = 82410
Step 135: 82410 + 615 = 83025
Step 136: 83025 + 615 = 83640
Step 137: 83640 + 615 = 84255
Step 138: 84255 + 615 = 84870
Step 139: 84870 + 615 = 85485
Step 140: 85485 + 615 = 86100
Step 141: 86100 + 615 = 86715
Step 142: 86715 + 615 = 87330
Step 143: 87330 + 615 = 87945
Step 144: 87945 + 615 = 88560
Step 145: 88560 + 615 = 89175
Step 146: 89175 + 615 = 89790
Step 147: 89790 + 615 = 90405
Step 148: 90405 + 615 = 91020
Step 149: 91020 + 615 = 91635
Step 150: 91635 + 615 = 92250
Step 151: 92250 + 615 = 92865
Step 152: 92865 + 615 = 93480
Step 153: 93480 + 615 = 94095
Step 154: 94095 + 615 = 94710
Step 155: 94710 + 615 = 95325
Step 156: 95325 + 615 = 95940
Step 157: 95940 + 615 = 96555
Step 158: 96555 + 615 = 97170
Step 159: 97170 + 615 = 97785
Step 160: 97785 + 615 = 98400
Step 161: 98400 + 615 = 99015
Step 162: 99015 + 615 = 99630
Step 163: 99630 + 615 = 100245
Step 164: 100245 + 615 = 100860
Step 165: 100860 + 615 = 101475
Step 166: 101475 + 615 = 102090
Step 167: 102090 + 615 = 102705
Step 168: 102705 + 615 = 103320
Step 169: 103320 + 615 = 103935
Step 170: 103935 + 615 = 104550
Step 171: 104550 + 615 = 105165
Step 172: 105165 + 615 = 105780
Step 173: 105780 + 615 = 106395
Step 174: 106395 + 615 = 107010
Step 175: 107010 + 615 = 107625
Step 176: 107625 + 615 = 108240
Step 177: 108240 + 615 = 108855
Step 178: 108855 + 615 = 109470
Step 179: 109470 + 615 = 110085
Step 180: 110085 + 615 = 110700
Step 181: 110700 + 615 = 111315
Step 182: 111315 + 615 = 111930
Step 183: 111930 + 615 = 112545
Step 184: 112545 + 615 = 113160
Step 185: 113160 + 615 = 113775
Step 186: 113775 + 615 = 114390
Step 187: 114390 + 615 = 115005
Step 188: 115005 + 615 = 115620
Step 189: 115620 + 615 = 116235
Step 190: 116235 + 615 = 116850
Step 191: 116850 + 615 = 117465
Step 192: 117465 + 615 = 118080
Step 193: 118080 + 615 = 118695
Step 194: 118695 + 615 = 119310
Step 195: 119310 + 615 = 119925
Step 196: 119925 + 615 = 120540
Step 197: 120540 + 615 = 121155
Step 198: 121155 + 615 = 121770
Step 199: 121770 + 615 = 122385
Step 200: 122385 + 615 = 123000
Step 201: 123000 + 615 = 123615
Step 202: 123615 + 615 = 124230
Step 203: 124230 + 615 = 124845
Step 204: 124845 + 615 = 125460
Step 205: 125460 + 615 = 126075
Step 206: 126075 + 615 = 126690
Step 207: 126690 + 615 = 127305
Step 208: 127305 + 615 = 127920
Step 209: 127920 + 615 = 128535
Step 210: 128535 + 615 = 129150
Step 211: 129150 + 615 = 129765
Step 212: 129765 + 615 = 130380
Step 213: 130380 + 615 = 130995
Step 214: 130995 + 615 = 131610
Step 215: 131610 + 615 = 132225
Step 216: 132225 + 615 = 132840
Step 217: 132840 + 615 = 133455
Step 218: 133455 + 615 = 134070
Step 219: 134070 + 615 = 134685
Step 220: 134685 + 615 = 135300
Step 221: 135300 + 615 = 135915
Step 222: 135915 + 615 = 136530
Step 223: 136530 + 615 = 137145
Step 224: 137145 + 615 = 137760
Step 225: 137760 + 615 = 138375
Step 226: 138375 + 615 = 138990
Step 227: 138990 + 615 = 139605
Step 228: 139605 + 615 = 140220
Step 229: 140220 + 615 = 140835
Step 230: 140835 + 615 = 141450
Step 231: 141450 + 615 = 142065
Step 232: 142065 + 615 = 142680
Step 233: 142680 + 615 = 143295
Step 234: 143295 + 615 = 143910
Step 235: 143910 + 615 = 144525
Step 236: 144525 + 615 = 145140
Step 237: 145140 + 615 = 145755
Step 238: 145755 + 615 = 146370
Step 239: 146370 + 615 = 146985
Step 240: 146985 + 615 = 147600
Step 241: 147600 + 615 = 148215
Step 242: 148215 + 615 = 148830
Step 243: 148830 + 615 = 149445
Step 244: 149445 + 615 = 150060
Step 245: 150060 + 615 = 150675
Step 246: 150675 + 615 = 151290
Step 247: 151290 + 615 = 151905
Step 248: 151905 + 615 = 152520
Step 249: 152520 + 615 = 153135
Step 250: 153135 + 615 = 153750
Step 251: 153750 + 615 = 154365
Step 252: 154365 + 615 = 154980
Step 253: 154980 + 615 = 155595
Step 254: 155595 + 615 = 156210
Step 255: 156210 + 615 = 156825
Step 256: 156825 + 615 = 157440
Step 257: 157440 + 615 = 158055
Step 258: 158055 + 615 = 158670
Step 259: 158670 + 615 = 159285
Step 260: 159285 + 615 = 159900
Step 261: 159900 + 615 = 160515
Step 262: 160515 + 615 = 161130
Step 263: 161130 + 615 = 161745
Step 264: 161745 + 615 = 162360
Step 265: 162360 + 615 = 162975
Step 266: 162975 + 615 = 163590
Step 267: 163590 + 615 = 164205
Step 268: 164205 + 615 = 164820
Step 269: 164820 + 615 = 165435
Step 270: 165435 + 615 = 166050
Step 271: 166050 + 615 = 166665
Step 272: 166665 + 615 = 167280
Step 273: 167280 + 615 = 167895
Step 274: 167895 + 615 = 168510
Step 275: 168510 + 615 = 169125
Step 276: 169125 + 615 = 169740
Step 277: 169740 + 615 = 170355
Step 278: 170355 + 615 = 170970
Step 279: 170970 + 615 = 171585
Step 280: 171585 + 615 = 172200
Step 281: 172200 + 615 = 172815
Step 282: 172815 + 615 = 173430
Step 283: 173430 + 615 = 174045
Step 284: 174045 + 615 = 174660
Step 285: 174660 + 615 = 175275
Step 286: 175275 + 615 = 175890
Step 287: 175890 + 615 = 176505
Step 288: 176505 + 615 = 177120
Step 289: 177120 + 615 = 177735
Step 290: 177735 + 615 = 178350
Step 291: 178350 + 615 = 178965
Step 292: 178965 + 615 = 179580
Step 293: 179580 + 615 = 180195
Step 294: 180195 + 615 = 180810
Step 295: 180810 + 615 = 181425
Step 296: 181425 + 615 = 182040
Step 297: 182040 + 615 = 182655
Step 298: 182655 + 615 = 183270
Step 299: 183270 + 615 = 183885
Step 300: 183885 + 615 = 184500
Step 301: 184500 + 615 = 185115
Step 302: 185115 + 615 = 185730
Step 303: 185730 + 615 = 186345
Step 304: 186345 + 615 = 186960
Step 305: 186960 + 615 = 187575
Step 306: 187575 + 615 = 188190
Step 307: 188190 + 615 = 188805
Step 308: 188805 + 615 = 189420
Step 309: 189420 + 615 = 190035
Step 310: 190035 + 615 = 190650
Step 311: 190650 + 615 = 191265
Step 312: 191265 + 615 = 191880
Step 313: 191880 + 615 = 192495
Step 314: 192495 + 615 = 193110
Step 315: 193110 + 615 = 193725
Step 316: 193725 + 615 = 194340
Step 317: 194340 + 615 = 194955
Step 318: 194955 + 615 = 195570
Step 319: 195570 + 615 = 196185
Step 320: 196185 + 615 = 196800
Step 321: 196800 + 615 = 197415
Step 322: 197415 + 615 = 198030
Step 323: 198030 + 615 = 198645
Step 324: 198645 + 615 = 199260
Step 325: 199260 + 615 = 199875
Step 326: 199875 + 615 = 200490
Step 327: 200490 + 615 = 201105
Step 328: 201105 + 615 = 201720
Step 329: 201720 + 615 = 202335
Step 330: 202335 + 615 = 202950
Step 331: 202950 + 615 = 203565
Step 332: 203565 + 615 = 204180
Step 333: 204180 + 615 = 204795
Step 334: 204795 + 615 = 205410
Step 335: 205410 + 615 = 206025
Step 336: 206025 + 615 = 206640
Step 337: 206640 + 615 = 207255
Step 338: 207255 + 615 = 207870
Step 339: 207870 + 615 = 208485
Step 340: 208485 + 615 = 209100
Step 341: 209100 + 615 = 209715
Step 342: 209715 + 615 = 210330
Step 343: 210330 + 615 = 210945
Step 344: 210945 + 615 = 211560
Step 345: 211560 + 615 = 212175
Step 346: 212175 + 615 = 212790
Step 347: 212790 + 615 = 213405
Step 348: 213405 + 615 = 214020
Step 349: 214020 + 615 = 214635
Step 350: 214635 + 615 = 215250
Step 351: 215250 + 615 = 215865
Step 352: 215865 + 615 = 216480
Step 353: 216480 + 615 = 217095
Step 354: 217095 + 615 = 217710
Step 355: 217710 + 615 = 218325
Step 356: 218325 + 615 = 218940
Step 357: 218940 + 615 = 219555
Step 358: 219555 + 615 = 220170
Step 359: 220170 + 615 = 220785
Step 360: 220785 + 615 = 221400
Step 361: 221400 + 615 = 222015
Step 362: 222015 + 615 = 222630
Step 363: 222630 + 615 = 223245
Step 364: 223245 + 615 = 223860
Step 365: 223860 + 615 = 224475
Step 366: 224475 + 615 = 225090
Step 367: 225090 + 615 = 225705
Step 368: 225705 + 615 = 226320
Step 369: 226320 + 615 = 226935
Step 370: 226935 + 615 = 227550
Step 371: 227550 + 615 = 228165
Step 372: 228165 + 615 = 228780
Step 373: 228780 + 615 = 229395
Step 374: 229395 + 615 = 230010
Step 375: 230010 + 615 = 230625
Step 376: 230625 + 615 = 231240
Step 377: 231240 + 615 = 231855
Step 378: 231855 + 615 = 232470
Step 379: 232470 + 615 = 233085
Step 380: 233085 + 615 = 233700
Step 381: 233700 + 615 = 234315
Step 382: 234315 + 615 = 234930
Step 383: 234930 + 615 = 235545
Step 384: 235545 + 615 = 236160
Step 385: 236160 + 615 = 236775
Step 386: 236775 + 615 = 237390
Step 387: 237390 + 615 = 238005
Step 388: 238005 + 615 = 238620
Step 389: 238620 + 615 = 239235
Step 390: 239235 + 615 = 239850
Step 391: 239850 + 615 = 240465
Step 392: 240465 + 615 = 241080
Step 393: 241080 + 615 = 241695
Step 394: 241695 + 615 = 242310
Step 395: 242310 + 615 = 242925
Step 396: 242925 + 615 = 243540
Step 397: 243540 + 615 = 244155
Step 398: 244155 + 615 = 244770
Step 399: 244770 + 615 = 245385
Step 400: 245385 + 615 = 246000
Step 401: 246000 + 615 = 246615
Step 402: 246615 + 615 = 247230
Step 403: 247230 + 615 = 247845
Step 404: 247845 + 615 = 248460
Step 405: 248460 + 615 = 249075
Step 406: 249075 + 615 = 249690
Step 407: 249690 + 615 = 250305
Step 408: 250305 + 615 = 250920
Step 409: 250920 + 615 = 251535
Step 410: 251535 + 615 = 252150
Step 411: 252150 + 615 = 252765
Step 412: 252765 + 615 = 253380
Step 413: 253380 + 615 = 253995
Step 414: 253995 + 615 = 254610
Step 415: 254610 + 615 = 255225
Step 416: 255225 + 615 = 255840
Step 417: 255840 + 615 = 256455
Step 418: 256455 + 615 = 257070
Step 419: 257070 + 615 = 257685
Step 420: 257685 + 615 = 258300
Step 421: 258300 + 615 = 258915
Step 422: 258915 + 615 = 259530
Step 423: 259530 + 615 = 260145
Step 424: 260145 + 615 = 260760
Step 425: 260760 + 615 = 261375
Step 426: 261375 + 615 = 261990
Step 427: 261990 + 615 = 262605
Step 428: 262605 + 615 = 263220
Step 429: 263220 + 615 = 263835
Step 430: 263835 + 615 = 264450
Step 431: 264450 + 615 = 265065
Step 432: 265065 + 615 = 265680
Step 433: 265680 + 615 = 266295
Step 434: 266295 + 615 = 266910
Step 435: 266910 + 615 = 267525
Step 436: 267525 + 615 = 268140
Step 437: 268140 + 615 = 268755
Step 438: 268755 + 615 = 269370
Step 439: 269370 + 615 = 269985
Step 440: 269985 + 615 = 270600
Step 441: 270600 + 615 = 271215
Step 442: 271215 + 615 = 271830
Step 443: 271830 + 615 = 272445
Step 444: 272445 + 615 = 273060
Step 445: 273060 + 615 = 273675
Step 446: 273675 + 615 = 274290
Step 447: 274290 + 615 = 274905
Step 448: 274905 + 615 = 275520
Step 449: 275520 + 615 = 276135
Step 450: 276135 + 615 = 276750
Step 451: 276750 + 615 = 277365
Step 452: 277365 + 615 = 277980
Step 453: 277980 + 615 = 278595
Step 454: 278595 + 615 = 279210
Step 455: 279210 + 615 = 279825
Step 456: 279825 + 615 = 280440
Step 457: 280440 + 615 = 281055
Step 458: 281055 + 615 = 281670
Step 459: 281670 + 615 = 282285
Step 460: 282285 + 615 = 282900
Step 461: 282900 + 615 = 283515
Step 462: 283515 + 615 = 284130
Step 463: 284130 + 615 = 284745
Step 464: 284745 + 615 = 285360
Step 465: 285360 + 615 = 285975
Step 466: 285975 + 615 = 286590
Step 467: 286590 + 615 = 287205
Step 468: 287205 + 615 = 287820
Step 469: 287820 + 615 = 288435
Step 470: 288435 + 615 = 289050
Step 471: 289050 + 615 = 289665
Step 472: 289665 + 615 = 290280
Step 473: 290280 + 615 = 290895
Step 474: 290895 + 615 = 291510
Step 475: 291510 + 615 = 292125
Step 476: 292125 + 615 = 292740
Step 477: 292740 + 615 = 293355
Step 478: 293355 + 615 = 293970
Step 479: 293970 + 615 = 294585
Step 480: 294585 + 615 = 295200
Step 481: 295200 + 615 = 295815
Step 482: 295815 + 615 = 296430
Step 483: 296430 + 615 = 297045
Step 484: 297045 + 615 = 297660
Step 485: 297660 + 615 = 298275
Step 486: 298275 + 615 = 298890
Step 487: 298890 + 615 = 299505
Step 488: 299505 + 615 = 300120
Step 489: 300120 + 615 = 300735
Step 490: 300735 + 615 = 301350

So, 615*490 = 301350