Without delay, let's solve this. We've got 616 and we will be multiplying it by 343, that is, adding 616 to itself 343 times.
Step 1: 0 + 616 = 616
Step 2: 616 + 616 = 1232
Step 3: 1232 + 616 = 1848
Step 4: 1848 + 616 = 2464
Step 5: 2464 + 616 = 3080
Step 6: 3080 + 616 = 3696
Step 7: 3696 + 616 = 4312
Step 8: 4312 + 616 = 4928
Step 9: 4928 + 616 = 5544
Step 10: 5544 + 616 = 6160
Step 11: 6160 + 616 = 6776
Step 12: 6776 + 616 = 7392
Step 13: 7392 + 616 = 8008
Step 14: 8008 + 616 = 8624
Step 15: 8624 + 616 = 9240
Step 16: 9240 + 616 = 9856
Step 17: 9856 + 616 = 10472
Step 18: 10472 + 616 = 11088
Step 19: 11088 + 616 = 11704
Step 20: 11704 + 616 = 12320
Step 21: 12320 + 616 = 12936
Step 22: 12936 + 616 = 13552
Step 23: 13552 + 616 = 14168
Step 24: 14168 + 616 = 14784
Step 25: 14784 + 616 = 15400
Step 26: 15400 + 616 = 16016
Step 27: 16016 + 616 = 16632
Step 28: 16632 + 616 = 17248
Step 29: 17248 + 616 = 17864
Step 30: 17864 + 616 = 18480
Step 31: 18480 + 616 = 19096
Step 32: 19096 + 616 = 19712
Step 33: 19712 + 616 = 20328
Step 34: 20328 + 616 = 20944
Step 35: 20944 + 616 = 21560
Step 36: 21560 + 616 = 22176
Step 37: 22176 + 616 = 22792
Step 38: 22792 + 616 = 23408
Step 39: 23408 + 616 = 24024
Step 40: 24024 + 616 = 24640
Step 41: 24640 + 616 = 25256
Step 42: 25256 + 616 = 25872
Step 43: 25872 + 616 = 26488
Step 44: 26488 + 616 = 27104
Step 45: 27104 + 616 = 27720
Step 46: 27720 + 616 = 28336
Step 47: 28336 + 616 = 28952
Step 48: 28952 + 616 = 29568
Step 49: 29568 + 616 = 30184
Step 50: 30184 + 616 = 30800
Step 51: 30800 + 616 = 31416
Step 52: 31416 + 616 = 32032
Step 53: 32032 + 616 = 32648
Step 54: 32648 + 616 = 33264
Step 55: 33264 + 616 = 33880
Step 56: 33880 + 616 = 34496
Step 57: 34496 + 616 = 35112
Step 58: 35112 + 616 = 35728
Step 59: 35728 + 616 = 36344
Step 60: 36344 + 616 = 36960
Step 61: 36960 + 616 = 37576
Step 62: 37576 + 616 = 38192
Step 63: 38192 + 616 = 38808
Step 64: 38808 + 616 = 39424
Step 65: 39424 + 616 = 40040
Step 66: 40040 + 616 = 40656
Step 67: 40656 + 616 = 41272
Step 68: 41272 + 616 = 41888
Step 69: 41888 + 616 = 42504
Step 70: 42504 + 616 = 43120
Step 71: 43120 + 616 = 43736
Step 72: 43736 + 616 = 44352
Step 73: 44352 + 616 = 44968
Step 74: 44968 + 616 = 45584
Step 75: 45584 + 616 = 46200
Step 76: 46200 + 616 = 46816
Step 77: 46816 + 616 = 47432
Step 78: 47432 + 616 = 48048
Step 79: 48048 + 616 = 48664
Step 80: 48664 + 616 = 49280
Step 81: 49280 + 616 = 49896
Step 82: 49896 + 616 = 50512
Step 83: 50512 + 616 = 51128
Step 84: 51128 + 616 = 51744
Step 85: 51744 + 616 = 52360
Step 86: 52360 + 616 = 52976
Step 87: 52976 + 616 = 53592
Step 88: 53592 + 616 = 54208
Step 89: 54208 + 616 = 54824
Step 90: 54824 + 616 = 55440
Step 91: 55440 + 616 = 56056
Step 92: 56056 + 616 = 56672
Step 93: 56672 + 616 = 57288
Step 94: 57288 + 616 = 57904
Step 95: 57904 + 616 = 58520
Step 96: 58520 + 616 = 59136
Step 97: 59136 + 616 = 59752
Step 98: 59752 + 616 = 60368
Step 99: 60368 + 616 = 60984
Step 100: 60984 + 616 = 61600
Step 101: 61600 + 616 = 62216
Step 102: 62216 + 616 = 62832
Step 103: 62832 + 616 = 63448
Step 104: 63448 + 616 = 64064
Step 105: 64064 + 616 = 64680
Step 106: 64680 + 616 = 65296
Step 107: 65296 + 616 = 65912
Step 108: 65912 + 616 = 66528
Step 109: 66528 + 616 = 67144
Step 110: 67144 + 616 = 67760
Step 111: 67760 + 616 = 68376
Step 112: 68376 + 616 = 68992
Step 113: 68992 + 616 = 69608
Step 114: 69608 + 616 = 70224
Step 115: 70224 + 616 = 70840
Step 116: 70840 + 616 = 71456
Step 117: 71456 + 616 = 72072
Step 118: 72072 + 616 = 72688
Step 119: 72688 + 616 = 73304
Step 120: 73304 + 616 = 73920
Step 121: 73920 + 616 = 74536
Step 122: 74536 + 616 = 75152
Step 123: 75152 + 616 = 75768
Step 124: 75768 + 616 = 76384
Step 125: 76384 + 616 = 77000
Step 126: 77000 + 616 = 77616
Step 127: 77616 + 616 = 78232
Step 128: 78232 + 616 = 78848
Step 129: 78848 + 616 = 79464
Step 130: 79464 + 616 = 80080
Step 131: 80080 + 616 = 80696
Step 132: 80696 + 616 = 81312
Step 133: 81312 + 616 = 81928
Step 134: 81928 + 616 = 82544
Step 135: 82544 + 616 = 83160
Step 136: 83160 + 616 = 83776
Step 137: 83776 + 616 = 84392
Step 138: 84392 + 616 = 85008
Step 139: 85008 + 616 = 85624
Step 140: 85624 + 616 = 86240
Step 141: 86240 + 616 = 86856
Step 142: 86856 + 616 = 87472
Step 143: 87472 + 616 = 88088
Step 144: 88088 + 616 = 88704
Step 145: 88704 + 616 = 89320
Step 146: 89320 + 616 = 89936
Step 147: 89936 + 616 = 90552
Step 148: 90552 + 616 = 91168
Step 149: 91168 + 616 = 91784
Step 150: 91784 + 616 = 92400
Step 151: 92400 + 616 = 93016
Step 152: 93016 + 616 = 93632
Step 153: 93632 + 616 = 94248
Step 154: 94248 + 616 = 94864
Step 155: 94864 + 616 = 95480
Step 156: 95480 + 616 = 96096
Step 157: 96096 + 616 = 96712
Step 158: 96712 + 616 = 97328
Step 159: 97328 + 616 = 97944
Step 160: 97944 + 616 = 98560
Step 161: 98560 + 616 = 99176
Step 162: 99176 + 616 = 99792
Step 163: 99792 + 616 = 100408
Step 164: 100408 + 616 = 101024
Step 165: 101024 + 616 = 101640
Step 166: 101640 + 616 = 102256
Step 167: 102256 + 616 = 102872
Step 168: 102872 + 616 = 103488
Step 169: 103488 + 616 = 104104
Step 170: 104104 + 616 = 104720
Step 171: 104720 + 616 = 105336
Step 172: 105336 + 616 = 105952
Step 173: 105952 + 616 = 106568
Step 174: 106568 + 616 = 107184
Step 175: 107184 + 616 = 107800
Step 176: 107800 + 616 = 108416
Step 177: 108416 + 616 = 109032
Step 178: 109032 + 616 = 109648
Step 179: 109648 + 616 = 110264
Step 180: 110264 + 616 = 110880
Step 181: 110880 + 616 = 111496
Step 182: 111496 + 616 = 112112
Step 183: 112112 + 616 = 112728
Step 184: 112728 + 616 = 113344
Step 185: 113344 + 616 = 113960
Step 186: 113960 + 616 = 114576
Step 187: 114576 + 616 = 115192
Step 188: 115192 + 616 = 115808
Step 189: 115808 + 616 = 116424
Step 190: 116424 + 616 = 117040
Step 191: 117040 + 616 = 117656
Step 192: 117656 + 616 = 118272
Step 193: 118272 + 616 = 118888
Step 194: 118888 + 616 = 119504
Step 195: 119504 + 616 = 120120
Step 196: 120120 + 616 = 120736
Step 197: 120736 + 616 = 121352
Step 198: 121352 + 616 = 121968
Step 199: 121968 + 616 = 122584
Step 200: 122584 + 616 = 123200
Step 201: 123200 + 616 = 123816
Step 202: 123816 + 616 = 124432
Step 203: 124432 + 616 = 125048
Step 204: 125048 + 616 = 125664
Step 205: 125664 + 616 = 126280
Step 206: 126280 + 616 = 126896
Step 207: 126896 + 616 = 127512
Step 208: 127512 + 616 = 128128
Step 209: 128128 + 616 = 128744
Step 210: 128744 + 616 = 129360
Step 211: 129360 + 616 = 129976
Step 212: 129976 + 616 = 130592
Step 213: 130592 + 616 = 131208
Step 214: 131208 + 616 = 131824
Step 215: 131824 + 616 = 132440
Step 216: 132440 + 616 = 133056
Step 217: 133056 + 616 = 133672
Step 218: 133672 + 616 = 134288
Step 219: 134288 + 616 = 134904
Step 220: 134904 + 616 = 135520
Step 221: 135520 + 616 = 136136
Step 222: 136136 + 616 = 136752
Step 223: 136752 + 616 = 137368
Step 224: 137368 + 616 = 137984
Step 225: 137984 + 616 = 138600
Step 226: 138600 + 616 = 139216
Step 227: 139216 + 616 = 139832
Step 228: 139832 + 616 = 140448
Step 229: 140448 + 616 = 141064
Step 230: 141064 + 616 = 141680
Step 231: 141680 + 616 = 142296
Step 232: 142296 + 616 = 142912
Step 233: 142912 + 616 = 143528
Step 234: 143528 + 616 = 144144
Step 235: 144144 + 616 = 144760
Step 236: 144760 + 616 = 145376
Step 237: 145376 + 616 = 145992
Step 238: 145992 + 616 = 146608
Step 239: 146608 + 616 = 147224
Step 240: 147224 + 616 = 147840
Step 241: 147840 + 616 = 148456
Step 242: 148456 + 616 = 149072
Step 243: 149072 + 616 = 149688
Step 244: 149688 + 616 = 150304
Step 245: 150304 + 616 = 150920
Step 246: 150920 + 616 = 151536
Step 247: 151536 + 616 = 152152
Step 248: 152152 + 616 = 152768
Step 249: 152768 + 616 = 153384
Step 250: 153384 + 616 = 154000
Step 251: 154000 + 616 = 154616
Step 252: 154616 + 616 = 155232
Step 253: 155232 + 616 = 155848
Step 254: 155848 + 616 = 156464
Step 255: 156464 + 616 = 157080
Step 256: 157080 + 616 = 157696
Step 257: 157696 + 616 = 158312
Step 258: 158312 + 616 = 158928
Step 259: 158928 + 616 = 159544
Step 260: 159544 + 616 = 160160
Step 261: 160160 + 616 = 160776
Step 262: 160776 + 616 = 161392
Step 263: 161392 + 616 = 162008
Step 264: 162008 + 616 = 162624
Step 265: 162624 + 616 = 163240
Step 266: 163240 + 616 = 163856
Step 267: 163856 + 616 = 164472
Step 268: 164472 + 616 = 165088
Step 269: 165088 + 616 = 165704
Step 270: 165704 + 616 = 166320
Step 271: 166320 + 616 = 166936
Step 272: 166936 + 616 = 167552
Step 273: 167552 + 616 = 168168
Step 274: 168168 + 616 = 168784
Step 275: 168784 + 616 = 169400
Step 276: 169400 + 616 = 170016
Step 277: 170016 + 616 = 170632
Step 278: 170632 + 616 = 171248
Step 279: 171248 + 616 = 171864
Step 280: 171864 + 616 = 172480
Step 281: 172480 + 616 = 173096
Step 282: 173096 + 616 = 173712
Step 283: 173712 + 616 = 174328
Step 284: 174328 + 616 = 174944
Step 285: 174944 + 616 = 175560
Step 286: 175560 + 616 = 176176
Step 287: 176176 + 616 = 176792
Step 288: 176792 + 616 = 177408
Step 289: 177408 + 616 = 178024
Step 290: 178024 + 616 = 178640
Step 291: 178640 + 616 = 179256
Step 292: 179256 + 616 = 179872
Step 293: 179872 + 616 = 180488
Step 294: 180488 + 616 = 181104
Step 295: 181104 + 616 = 181720
Step 296: 181720 + 616 = 182336
Step 297: 182336 + 616 = 182952
Step 298: 182952 + 616 = 183568
Step 299: 183568 + 616 = 184184
Step 300: 184184 + 616 = 184800
Step 301: 184800 + 616 = 185416
Step 302: 185416 + 616 = 186032
Step 303: 186032 + 616 = 186648
Step 304: 186648 + 616 = 187264
Step 305: 187264 + 616 = 187880
Step 306: 187880 + 616 = 188496
Step 307: 188496 + 616 = 189112
Step 308: 189112 + 616 = 189728
Step 309: 189728 + 616 = 190344
Step 310: 190344 + 616 = 190960
Step 311: 190960 + 616 = 191576
Step 312: 191576 + 616 = 192192
Step 313: 192192 + 616 = 192808
Step 314: 192808 + 616 = 193424
Step 315: 193424 + 616 = 194040
Step 316: 194040 + 616 = 194656
Step 317: 194656 + 616 = 195272
Step 318: 195272 + 616 = 195888
Step 319: 195888 + 616 = 196504
Step 320: 196504 + 616 = 197120
Step 321: 197120 + 616 = 197736
Step 322: 197736 + 616 = 198352
Step 323: 198352 + 616 = 198968
Step 324: 198968 + 616 = 199584
Step 325: 199584 + 616 = 200200
Step 326: 200200 + 616 = 200816
Step 327: 200816 + 616 = 201432
Step 328: 201432 + 616 = 202048
Step 329: 202048 + 616 = 202664
Step 330: 202664 + 616 = 203280
Step 331: 203280 + 616 = 203896
Step 332: 203896 + 616 = 204512
Step 333: 204512 + 616 = 205128
Step 334: 205128 + 616 = 205744
Step 335: 205744 + 616 = 206360
Step 336: 206360 + 616 = 206976
Step 337: 206976 + 616 = 207592
Step 338: 207592 + 616 = 208208
Step 339: 208208 + 616 = 208824
Step 340: 208824 + 616 = 209440
Step 341: 209440 + 616 = 210056
Step 342: 210056 + 616 = 210672
Step 343: 210672 + 616 = 211288

So, 616*343 = 211288