Alright, let's solve this math problem step by step. First, we have the number 557. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 307. So, we're going to take the number 557 and add it to itself 307 times.
Step 1: 0 + 557 = 557
Step 2: 557 + 557 = 1114
Step 3: 1114 + 557 = 1671
Step 4: 1671 + 557 = 2228
Step 5: 2228 + 557 = 2785
Step 6: 2785 + 557 = 3342
Step 7: 3342 + 557 = 3899
Step 8: 3899 + 557 = 4456
Step 9: 4456 + 557 = 5013
Step 10: 5013 + 557 = 5570
Step 11: 5570 + 557 = 6127
Step 12: 6127 + 557 = 6684
Step 13: 6684 + 557 = 7241
Step 14: 7241 + 557 = 7798
Step 15: 7798 + 557 = 8355
Step 16: 8355 + 557 = 8912
Step 17: 8912 + 557 = 9469
Step 18: 9469 + 557 = 10026
Step 19: 10026 + 557 = 10583
Step 20: 10583 + 557 = 11140
Step 21: 11140 + 557 = 11697
Step 22: 11697 + 557 = 12254
Step 23: 12254 + 557 = 12811
Step 24: 12811 + 557 = 13368
Step 25: 13368 + 557 = 13925
Step 26: 13925 + 557 = 14482
Step 27: 14482 + 557 = 15039
Step 28: 15039 + 557 = 15596
Step 29: 15596 + 557 = 16153
Step 30: 16153 + 557 = 16710
Step 31: 16710 + 557 = 17267
Step 32: 17267 + 557 = 17824
Step 33: 17824 + 557 = 18381
Step 34: 18381 + 557 = 18938
Step 35: 18938 + 557 = 19495
Step 36: 19495 + 557 = 20052
Step 37: 20052 + 557 = 20609
Step 38: 20609 + 557 = 21166
Step 39: 21166 + 557 = 21723
Step 40: 21723 + 557 = 22280
Step 41: 22280 + 557 = 22837
Step 42: 22837 + 557 = 23394
Step 43: 23394 + 557 = 23951
Step 44: 23951 + 557 = 24508
Step 45: 24508 + 557 = 25065
Step 46: 25065 + 557 = 25622
Step 47: 25622 + 557 = 26179
Step 48: 26179 + 557 = 26736
Step 49: 26736 + 557 = 27293
Step 50: 27293 + 557 = 27850
Step 51: 27850 + 557 = 28407
Step 52: 28407 + 557 = 28964
Step 53: 28964 + 557 = 29521
Step 54: 29521 + 557 = 30078
Step 55: 30078 + 557 = 30635
Step 56: 30635 + 557 = 31192
Step 57: 31192 + 557 = 31749
Step 58: 31749 + 557 = 32306
Step 59: 32306 + 557 = 32863
Step 60: 32863 + 557 = 33420
Step 61: 33420 + 557 = 33977
Step 62: 33977 + 557 = 34534
Step 63: 34534 + 557 = 35091
Step 64: 35091 + 557 = 35648
Step 65: 35648 + 557 = 36205
Step 66: 36205 + 557 = 36762
Step 67: 36762 + 557 = 37319
Step 68: 37319 + 557 = 37876
Step 69: 37876 + 557 = 38433
Step 70: 38433 + 557 = 38990
Step 71: 38990 + 557 = 39547
Step 72: 39547 + 557 = 40104
Step 73: 40104 + 557 = 40661
Step 74: 40661 + 557 = 41218
Step 75: 41218 + 557 = 41775
Step 76: 41775 + 557 = 42332
Step 77: 42332 + 557 = 42889
Step 78: 42889 + 557 = 43446
Step 79: 43446 + 557 = 44003
Step 80: 44003 + 557 = 44560
Step 81: 44560 + 557 = 45117
Step 82: 45117 + 557 = 45674
Step 83: 45674 + 557 = 46231
Step 84: 46231 + 557 = 46788
Step 85: 46788 + 557 = 47345
Step 86: 47345 + 557 = 47902
Step 87: 47902 + 557 = 48459
Step 88: 48459 + 557 = 49016
Step 89: 49016 + 557 = 49573
Step 90: 49573 + 557 = 50130
Step 91: 50130 + 557 = 50687
Step 92: 50687 + 557 = 51244
Step 93: 51244 + 557 = 51801
Step 94: 51801 + 557 = 52358
Step 95: 52358 + 557 = 52915
Step 96: 52915 + 557 = 53472
Step 97: 53472 + 557 = 54029
Step 98: 54029 + 557 = 54586
Step 99: 54586 + 557 = 55143
Step 100: 55143 + 557 = 55700
Step 101: 55700 + 557 = 56257
Step 102: 56257 + 557 = 56814
Step 103: 56814 + 557 = 57371
Step 104: 57371 + 557 = 57928
Step 105: 57928 + 557 = 58485
Step 106: 58485 + 557 = 59042
Step 107: 59042 + 557 = 59599
Step 108: 59599 + 557 = 60156
Step 109: 60156 + 557 = 60713
Step 110: 60713 + 557 = 61270
Step 111: 61270 + 557 = 61827
Step 112: 61827 + 557 = 62384
Step 113: 62384 + 557 = 62941
Step 114: 62941 + 557 = 63498
Step 115: 63498 + 557 = 64055
Step 116: 64055 + 557 = 64612
Step 117: 64612 + 557 = 65169
Step 118: 65169 + 557 = 65726
Step 119: 65726 + 557 = 66283
Step 120: 66283 + 557 = 66840
Step 121: 66840 + 557 = 67397
Step 122: 67397 + 557 = 67954
Step 123: 67954 + 557 = 68511
Step 124: 68511 + 557 = 69068
Step 125: 69068 + 557 = 69625
Step 126: 69625 + 557 = 70182
Step 127: 70182 + 557 = 70739
Step 128: 70739 + 557 = 71296
Step 129: 71296 + 557 = 71853
Step 130: 71853 + 557 = 72410
Step 131: 72410 + 557 = 72967
Step 132: 72967 + 557 = 73524
Step 133: 73524 + 557 = 74081
Step 134: 74081 + 557 = 74638
Step 135: 74638 + 557 = 75195
Step 136: 75195 + 557 = 75752
Step 137: 75752 + 557 = 76309
Step 138: 76309 + 557 = 76866
Step 139: 76866 + 557 = 77423
Step 140: 77423 + 557 = 77980
Step 141: 77980 + 557 = 78537
Step 142: 78537 + 557 = 79094
Step 143: 79094 + 557 = 79651
Step 144: 79651 + 557 = 80208
Step 145: 80208 + 557 = 80765
Step 146: 80765 + 557 = 81322
Step 147: 81322 + 557 = 81879
Step 148: 81879 + 557 = 82436
Step 149: 82436 + 557 = 82993
Step 150: 82993 + 557 = 83550
Step 151: 83550 + 557 = 84107
Step 152: 84107 + 557 = 84664
Step 153: 84664 + 557 = 85221
Step 154: 85221 + 557 = 85778
Step 155: 85778 + 557 = 86335
Step 156: 86335 + 557 = 86892
Step 157: 86892 + 557 = 87449
Step 158: 87449 + 557 = 88006
Step 159: 88006 + 557 = 88563
Step 160: 88563 + 557 = 89120
Step 161: 89120 + 557 = 89677
Step 162: 89677 + 557 = 90234
Step 163: 90234 + 557 = 90791
Step 164: 90791 + 557 = 91348
Step 165: 91348 + 557 = 91905
Step 166: 91905 + 557 = 92462
Step 167: 92462 + 557 = 93019
Step 168: 93019 + 557 = 93576
Step 169: 93576 + 557 = 94133
Step 170: 94133 + 557 = 94690
Step 171: 94690 + 557 = 95247
Step 172: 95247 + 557 = 95804
Step 173: 95804 + 557 = 96361
Step 174: 96361 + 557 = 96918
Step 175: 96918 + 557 = 97475
Step 176: 97475 + 557 = 98032
Step 177: 98032 + 557 = 98589
Step 178: 98589 + 557 = 99146
Step 179: 99146 + 557 = 99703
Step 180: 99703 + 557 = 100260
Step 181: 100260 + 557 = 100817
Step 182: 100817 + 557 = 101374
Step 183: 101374 + 557 = 101931
Step 184: 101931 + 557 = 102488
Step 185: 102488 + 557 = 103045
Step 186: 103045 + 557 = 103602
Step 187: 103602 + 557 = 104159
Step 188: 104159 + 557 = 104716
Step 189: 104716 + 557 = 105273
Step 190: 105273 + 557 = 105830
Step 191: 105830 + 557 = 106387
Step 192: 106387 + 557 = 106944
Step 193: 106944 + 557 = 107501
Step 194: 107501 + 557 = 108058
Step 195: 108058 + 557 = 108615
Step 196: 108615 + 557 = 109172
Step 197: 109172 + 557 = 109729
Step 198: 109729 + 557 = 110286
Step 199: 110286 + 557 = 110843
Step 200: 110843 + 557 = 111400
Step 201: 111400 + 557 = 111957
Step 202: 111957 + 557 = 112514
Step 203: 112514 + 557 = 113071
Step 204: 113071 + 557 = 113628
Step 205: 113628 + 557 = 114185
Step 206: 114185 + 557 = 114742
Step 207: 114742 + 557 = 115299
Step 208: 115299 + 557 = 115856
Step 209: 115856 + 557 = 116413
Step 210: 116413 + 557 = 116970
Step 211: 116970 + 557 = 117527
Step 212: 117527 + 557 = 118084
Step 213: 118084 + 557 = 118641
Step 214: 118641 + 557 = 119198
Step 215: 119198 + 557 = 119755
Step 216: 119755 + 557 = 120312
Step 217: 120312 + 557 = 120869
Step 218: 120869 + 557 = 121426
Step 219: 121426 + 557 = 121983
Step 220: 121983 + 557 = 122540
Step 221: 122540 + 557 = 123097
Step 222: 123097 + 557 = 123654
Step 223: 123654 + 557 = 124211
Step 224: 124211 + 557 = 124768
Step 225: 124768 + 557 = 125325
Step 226: 125325 + 557 = 125882
Step 227: 125882 + 557 = 126439
Step 228: 126439 + 557 = 126996
Step 229: 126996 + 557 = 127553
Step 230: 127553 + 557 = 128110
Step 231: 128110 + 557 = 128667
Step 232: 128667 + 557 = 129224
Step 233: 129224 + 557 = 129781
Step 234: 129781 + 557 = 130338
Step 235: 130338 + 557 = 130895
Step 236: 130895 + 557 = 131452
Step 237: 131452 + 557 = 132009
Step 238: 132009 + 557 = 132566
Step 239: 132566 + 557 = 133123
Step 240: 133123 + 557 = 133680
Step 241: 133680 + 557 = 134237
Step 242: 134237 + 557 = 134794
Step 243: 134794 + 557 = 135351
Step 244: 135351 + 557 = 135908
Step 245: 135908 + 557 = 136465
Step 246: 136465 + 557 = 137022
Step 247: 137022 + 557 = 137579
Step 248: 137579 + 557 = 138136
Step 249: 138136 + 557 = 138693
Step 250: 138693 + 557 = 139250
Step 251: 139250 + 557 = 139807
Step 252: 139807 + 557 = 140364
Step 253: 140364 + 557 = 140921
Step 254: 140921 + 557 = 141478
Step 255: 141478 + 557 = 142035
Step 256: 142035 + 557 = 142592
Step 257: 142592 + 557 = 143149
Step 258: 143149 + 557 = 143706
Step 259: 143706 + 557 = 144263
Step 260: 144263 + 557 = 144820
Step 261: 144820 + 557 = 145377
Step 262: 145377 + 557 = 145934
Step 263: 145934 + 557 = 146491
Step 264: 146491 + 557 = 147048
Step 265: 147048 + 557 = 147605
Step 266: 147605 + 557 = 148162
Step 267: 148162 + 557 = 148719
Step 268: 148719 + 557 = 149276
Step 269: 149276 + 557 = 149833
Step 270: 149833 + 557 = 150390
Step 271: 150390 + 557 = 150947
Step 272: 150947 + 557 = 151504
Step 273: 151504 + 557 = 152061
Step 274: 152061 + 557 = 152618
Step 275: 152618 + 557 = 153175
Step 276: 153175 + 557 = 153732
Step 277: 153732 + 557 = 154289
Step 278: 154289 + 557 = 154846
Step 279: 154846 + 557 = 155403
Step 280: 155403 + 557 = 155960
Step 281: 155960 + 557 = 156517
Step 282: 156517 + 557 = 157074
Step 283: 157074 + 557 = 157631
Step 284: 157631 + 557 = 158188
Step 285: 158188 + 557 = 158745
Step 286: 158745 + 557 = 159302
Step 287: 159302 + 557 = 159859
Step 288: 159859 + 557 = 160416
Step 289: 160416 + 557 = 160973
Step 290: 160973 + 557 = 161530
Step 291: 161530 + 557 = 162087
Step 292: 162087 + 557 = 162644
Step 293: 162644 + 557 = 163201
Step 294: 163201 + 557 = 163758
Step 295: 163758 + 557 = 164315
Step 296: 164315 + 557 = 164872
Step 297: 164872 + 557 = 165429
Step 298: 165429 + 557 = 165986
Step 299: 165986 + 557 = 166543
Step 300: 166543 + 557 = 167100
Step 301: 167100 + 557 = 167657
Step 302: 167657 + 557 = 168214
Step 303: 168214 + 557 = 168771
Step 304: 168771 + 557 = 169328
Step 305: 169328 + 557 = 169885
Step 306: 169885 + 557 = 170442
Step 307: 170442 + 557 = 170999

So, 557*307 = 170999