Alright, let's solve this math problem step by step. First, we have the number 819. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 402. So, we're going to take the number 819 and add it to itself 402 times.
Step 1: 0 + 819 = 819
Step 2: 819 + 819 = 1638
Step 3: 1638 + 819 = 2457
Step 4: 2457 + 819 = 3276
Step 5: 3276 + 819 = 4095
Step 6: 4095 + 819 = 4914
Step 7: 4914 + 819 = 5733
Step 8: 5733 + 819 = 6552
Step 9: 6552 + 819 = 7371
Step 10: 7371 + 819 = 8190
Step 11: 8190 + 819 = 9009
Step 12: 9009 + 819 = 9828
Step 13: 9828 + 819 = 10647
Step 14: 10647 + 819 = 11466
Step 15: 11466 + 819 = 12285
Step 16: 12285 + 819 = 13104
Step 17: 13104 + 819 = 13923
Step 18: 13923 + 819 = 14742
Step 19: 14742 + 819 = 15561
Step 20: 15561 + 819 = 16380
Step 21: 16380 + 819 = 17199
Step 22: 17199 + 819 = 18018
Step 23: 18018 + 819 = 18837
Step 24: 18837 + 819 = 19656
Step 25: 19656 + 819 = 20475
Step 26: 20475 + 819 = 21294
Step 27: 21294 + 819 = 22113
Step 28: 22113 + 819 = 22932
Step 29: 22932 + 819 = 23751
Step 30: 23751 + 819 = 24570
Step 31: 24570 + 819 = 25389
Step 32: 25389 + 819 = 26208
Step 33: 26208 + 819 = 27027
Step 34: 27027 + 819 = 27846
Step 35: 27846 + 819 = 28665
Step 36: 28665 + 819 = 29484
Step 37: 29484 + 819 = 30303
Step 38: 30303 + 819 = 31122
Step 39: 31122 + 819 = 31941
Step 40: 31941 + 819 = 32760
Step 41: 32760 + 819 = 33579
Step 42: 33579 + 819 = 34398
Step 43: 34398 + 819 = 35217
Step 44: 35217 + 819 = 36036
Step 45: 36036 + 819 = 36855
Step 46: 36855 + 819 = 37674
Step 47: 37674 + 819 = 38493
Step 48: 38493 + 819 = 39312
Step 49: 39312 + 819 = 40131
Step 50: 40131 + 819 = 40950
Step 51: 40950 + 819 = 41769
Step 52: 41769 + 819 = 42588
Step 53: 42588 + 819 = 43407
Step 54: 43407 + 819 = 44226
Step 55: 44226 + 819 = 45045
Step 56: 45045 + 819 = 45864
Step 57: 45864 + 819 = 46683
Step 58: 46683 + 819 = 47502
Step 59: 47502 + 819 = 48321
Step 60: 48321 + 819 = 49140
Step 61: 49140 + 819 = 49959
Step 62: 49959 + 819 = 50778
Step 63: 50778 + 819 = 51597
Step 64: 51597 + 819 = 52416
Step 65: 52416 + 819 = 53235
Step 66: 53235 + 819 = 54054
Step 67: 54054 + 819 = 54873
Step 68: 54873 + 819 = 55692
Step 69: 55692 + 819 = 56511
Step 70: 56511 + 819 = 57330
Step 71: 57330 + 819 = 58149
Step 72: 58149 + 819 = 58968
Step 73: 58968 + 819 = 59787
Step 74: 59787 + 819 = 60606
Step 75: 60606 + 819 = 61425
Step 76: 61425 + 819 = 62244
Step 77: 62244 + 819 = 63063
Step 78: 63063 + 819 = 63882
Step 79: 63882 + 819 = 64701
Step 80: 64701 + 819 = 65520
Step 81: 65520 + 819 = 66339
Step 82: 66339 + 819 = 67158
Step 83: 67158 + 819 = 67977
Step 84: 67977 + 819 = 68796
Step 85: 68796 + 819 = 69615
Step 86: 69615 + 819 = 70434
Step 87: 70434 + 819 = 71253
Step 88: 71253 + 819 = 72072
Step 89: 72072 + 819 = 72891
Step 90: 72891 + 819 = 73710
Step 91: 73710 + 819 = 74529
Step 92: 74529 + 819 = 75348
Step 93: 75348 + 819 = 76167
Step 94: 76167 + 819 = 76986
Step 95: 76986 + 819 = 77805
Step 96: 77805 + 819 = 78624
Step 97: 78624 + 819 = 79443
Step 98: 79443 + 819 = 80262
Step 99: 80262 + 819 = 81081
Step 100: 81081 + 819 = 81900
Step 101: 81900 + 819 = 82719
Step 102: 82719 + 819 = 83538
Step 103: 83538 + 819 = 84357
Step 104: 84357 + 819 = 85176
Step 105: 85176 + 819 = 85995
Step 106: 85995 + 819 = 86814
Step 107: 86814 + 819 = 87633
Step 108: 87633 + 819 = 88452
Step 109: 88452 + 819 = 89271
Step 110: 89271 + 819 = 90090
Step 111: 90090 + 819 = 90909
Step 112: 90909 + 819 = 91728
Step 113: 91728 + 819 = 92547
Step 114: 92547 + 819 = 93366
Step 115: 93366 + 819 = 94185
Step 116: 94185 + 819 = 95004
Step 117: 95004 + 819 = 95823
Step 118: 95823 + 819 = 96642
Step 119: 96642 + 819 = 97461
Step 120: 97461 + 819 = 98280
Step 121: 98280 + 819 = 99099
Step 122: 99099 + 819 = 99918
Step 123: 99918 + 819 = 100737
Step 124: 100737 + 819 = 101556
Step 125: 101556 + 819 = 102375
Step 126: 102375 + 819 = 103194
Step 127: 103194 + 819 = 104013
Step 128: 104013 + 819 = 104832
Step 129: 104832 + 819 = 105651
Step 130: 105651 + 819 = 106470
Step 131: 106470 + 819 = 107289
Step 132: 107289 + 819 = 108108
Step 133: 108108 + 819 = 108927
Step 134: 108927 + 819 = 109746
Step 135: 109746 + 819 = 110565
Step 136: 110565 + 819 = 111384
Step 137: 111384 + 819 = 112203
Step 138: 112203 + 819 = 113022
Step 139: 113022 + 819 = 113841
Step 140: 113841 + 819 = 114660
Step 141: 114660 + 819 = 115479
Step 142: 115479 + 819 = 116298
Step 143: 116298 + 819 = 117117
Step 144: 117117 + 819 = 117936
Step 145: 117936 + 819 = 118755
Step 146: 118755 + 819 = 119574
Step 147: 119574 + 819 = 120393
Step 148: 120393 + 819 = 121212
Step 149: 121212 + 819 = 122031
Step 150: 122031 + 819 = 122850
Step 151: 122850 + 819 = 123669
Step 152: 123669 + 819 = 124488
Step 153: 124488 + 819 = 125307
Step 154: 125307 + 819 = 126126
Step 155: 126126 + 819 = 126945
Step 156: 126945 + 819 = 127764
Step 157: 127764 + 819 = 128583
Step 158: 128583 + 819 = 129402
Step 159: 129402 + 819 = 130221
Step 160: 130221 + 819 = 131040
Step 161: 131040 + 819 = 131859
Step 162: 131859 + 819 = 132678
Step 163: 132678 + 819 = 133497
Step 164: 133497 + 819 = 134316
Step 165: 134316 + 819 = 135135
Step 166: 135135 + 819 = 135954
Step 167: 135954 + 819 = 136773
Step 168: 136773 + 819 = 137592
Step 169: 137592 + 819 = 138411
Step 170: 138411 + 819 = 139230
Step 171: 139230 + 819 = 140049
Step 172: 140049 + 819 = 140868
Step 173: 140868 + 819 = 141687
Step 174: 141687 + 819 = 142506
Step 175: 142506 + 819 = 143325
Step 176: 143325 + 819 = 144144
Step 177: 144144 + 819 = 144963
Step 178: 144963 + 819 = 145782
Step 179: 145782 + 819 = 146601
Step 180: 146601 + 819 = 147420
Step 181: 147420 + 819 = 148239
Step 182: 148239 + 819 = 149058
Step 183: 149058 + 819 = 149877
Step 184: 149877 + 819 = 150696
Step 185: 150696 + 819 = 151515
Step 186: 151515 + 819 = 152334
Step 187: 152334 + 819 = 153153
Step 188: 153153 + 819 = 153972
Step 189: 153972 + 819 = 154791
Step 190: 154791 + 819 = 155610
Step 191: 155610 + 819 = 156429
Step 192: 156429 + 819 = 157248
Step 193: 157248 + 819 = 158067
Step 194: 158067 + 819 = 158886
Step 195: 158886 + 819 = 159705
Step 196: 159705 + 819 = 160524
Step 197: 160524 + 819 = 161343
Step 198: 161343 + 819 = 162162
Step 199: 162162 + 819 = 162981
Step 200: 162981 + 819 = 163800
Step 201: 163800 + 819 = 164619
Step 202: 164619 + 819 = 165438
Step 203: 165438 + 819 = 166257
Step 204: 166257 + 819 = 167076
Step 205: 167076 + 819 = 167895
Step 206: 167895 + 819 = 168714
Step 207: 168714 + 819 = 169533
Step 208: 169533 + 819 = 170352
Step 209: 170352 + 819 = 171171
Step 210: 171171 + 819 = 171990
Step 211: 171990 + 819 = 172809
Step 212: 172809 + 819 = 173628
Step 213: 173628 + 819 = 174447
Step 214: 174447 + 819 = 175266
Step 215: 175266 + 819 = 176085
Step 216: 176085 + 819 = 176904
Step 217: 176904 + 819 = 177723
Step 218: 177723 + 819 = 178542
Step 219: 178542 + 819 = 179361
Step 220: 179361 + 819 = 180180
Step 221: 180180 + 819 = 180999
Step 222: 180999 + 819 = 181818
Step 223: 181818 + 819 = 182637
Step 224: 182637 + 819 = 183456
Step 225: 183456 + 819 = 184275
Step 226: 184275 + 819 = 185094
Step 227: 185094 + 819 = 185913
Step 228: 185913 + 819 = 186732
Step 229: 186732 + 819 = 187551
Step 230: 187551 + 819 = 188370
Step 231: 188370 + 819 = 189189
Step 232: 189189 + 819 = 190008
Step 233: 190008 + 819 = 190827
Step 234: 190827 + 819 = 191646
Step 235: 191646 + 819 = 192465
Step 236: 192465 + 819 = 193284
Step 237: 193284 + 819 = 194103
Step 238: 194103 + 819 = 194922
Step 239: 194922 + 819 = 195741
Step 240: 195741 + 819 = 196560
Step 241: 196560 + 819 = 197379
Step 242: 197379 + 819 = 198198
Step 243: 198198 + 819 = 199017
Step 244: 199017 + 819 = 199836
Step 245: 199836 + 819 = 200655
Step 246: 200655 + 819 = 201474
Step 247: 201474 + 819 = 202293
Step 248: 202293 + 819 = 203112
Step 249: 203112 + 819 = 203931
Step 250: 203931 + 819 = 204750
Step 251: 204750 + 819 = 205569
Step 252: 205569 + 819 = 206388
Step 253: 206388 + 819 = 207207
Step 254: 207207 + 819 = 208026
Step 255: 208026 + 819 = 208845
Step 256: 208845 + 819 = 209664
Step 257: 209664 + 819 = 210483
Step 258: 210483 + 819 = 211302
Step 259: 211302 + 819 = 212121
Step 260: 212121 + 819 = 212940
Step 261: 212940 + 819 = 213759
Step 262: 213759 + 819 = 214578
Step 263: 214578 + 819 = 215397
Step 264: 215397 + 819 = 216216
Step 265: 216216 + 819 = 217035
Step 266: 217035 + 819 = 217854
Step 267: 217854 + 819 = 218673
Step 268: 218673 + 819 = 219492
Step 269: 219492 + 819 = 220311
Step 270: 220311 + 819 = 221130
Step 271: 221130 + 819 = 221949
Step 272: 221949 + 819 = 222768
Step 273: 222768 + 819 = 223587
Step 274: 223587 + 819 = 224406
Step 275: 224406 + 819 = 225225
Step 276: 225225 + 819 = 226044
Step 277: 226044 + 819 = 226863
Step 278: 226863 + 819 = 227682
Step 279: 227682 + 819 = 228501
Step 280: 228501 + 819 = 229320
Step 281: 229320 + 819 = 230139
Step 282: 230139 + 819 = 230958
Step 283: 230958 + 819 = 231777
Step 284: 231777 + 819 = 232596
Step 285: 232596 + 819 = 233415
Step 286: 233415 + 819 = 234234
Step 287: 234234 + 819 = 235053
Step 288: 235053 + 819 = 235872
Step 289: 235872 + 819 = 236691
Step 290: 236691 + 819 = 237510
Step 291: 237510 + 819 = 238329
Step 292: 238329 + 819 = 239148
Step 293: 239148 + 819 = 239967
Step 294: 239967 + 819 = 240786
Step 295: 240786 + 819 = 241605
Step 296: 241605 + 819 = 242424
Step 297: 242424 + 819 = 243243
Step 298: 243243 + 819 = 244062
Step 299: 244062 + 819 = 244881
Step 300: 244881 + 819 = 245700
Step 301: 245700 + 819 = 246519
Step 302: 246519 + 819 = 247338
Step 303: 247338 + 819 = 248157
Step 304: 248157 + 819 = 248976
Step 305: 248976 + 819 = 249795
Step 306: 249795 + 819 = 250614
Step 307: 250614 + 819 = 251433
Step 308: 251433 + 819 = 252252
Step 309: 252252 + 819 = 253071
Step 310: 253071 + 819 = 253890
Step 311: 253890 + 819 = 254709
Step 312: 254709 + 819 = 255528
Step 313: 255528 + 819 = 256347
Step 314: 256347 + 819 = 257166
Step 315: 257166 + 819 = 257985
Step 316: 257985 + 819 = 258804
Step 317: 258804 + 819 = 259623
Step 318: 259623 + 819 = 260442
Step 319: 260442 + 819 = 261261
Step 320: 261261 + 819 = 262080
Step 321: 262080 + 819 = 262899
Step 322: 262899 + 819 = 263718
Step 323: 263718 + 819 = 264537
Step 324: 264537 + 819 = 265356
Step 325: 265356 + 819 = 266175
Step 326: 266175 + 819 = 266994
Step 327: 266994 + 819 = 267813
Step 328: 267813 + 819 = 268632
Step 329: 268632 + 819 = 269451
Step 330: 269451 + 819 = 270270
Step 331: 270270 + 819 = 271089
Step 332: 271089 + 819 = 271908
Step 333: 271908 + 819 = 272727
Step 334: 272727 + 819 = 273546
Step 335: 273546 + 819 = 274365
Step 336: 274365 + 819 = 275184
Step 337: 275184 + 819 = 276003
Step 338: 276003 + 819 = 276822
Step 339: 276822 + 819 = 277641
Step 340: 277641 + 819 = 278460
Step 341: 278460 + 819 = 279279
Step 342: 279279 + 819 = 280098
Step 343: 280098 + 819 = 280917
Step 344: 280917 + 819 = 281736
Step 345: 281736 + 819 = 282555
Step 346: 282555 + 819 = 283374
Step 347: 283374 + 819 = 284193
Step 348: 284193 + 819 = 285012
Step 349: 285012 + 819 = 285831
Step 350: 285831 + 819 = 286650
Step 351: 286650 + 819 = 287469
Step 352: 287469 + 819 = 288288
Step 353: 288288 + 819 = 289107
Step 354: 289107 + 819 = 289926
Step 355: 289926 + 819 = 290745
Step 356: 290745 + 819 = 291564
Step 357: 291564 + 819 = 292383
Step 358: 292383 + 819 = 293202
Step 359: 293202 + 819 = 294021
Step 360: 294021 + 819 = 294840
Step 361: 294840 + 819 = 295659
Step 362: 295659 + 819 = 296478
Step 363: 296478 + 819 = 297297
Step 364: 297297 + 819 = 298116
Step 365: 298116 + 819 = 298935
Step 366: 298935 + 819 = 299754
Step 367: 299754 + 819 = 300573
Step 368: 300573 + 819 = 301392
Step 369: 301392 + 819 = 302211
Step 370: 302211 + 819 = 303030
Step 371: 303030 + 819 = 303849
Step 372: 303849 + 819 = 304668
Step 373: 304668 + 819 = 305487
Step 374: 305487 + 819 = 306306
Step 375: 306306 + 819 = 307125
Step 376: 307125 + 819 = 307944
Step 377: 307944 + 819 = 308763
Step 378: 308763 + 819 = 309582
Step 379: 309582 + 819 = 310401
Step 380: 310401 + 819 = 311220
Step 381: 311220 + 819 = 312039
Step 382: 312039 + 819 = 312858
Step 383: 312858 + 819 = 313677
Step 384: 313677 + 819 = 314496
Step 385: 314496 + 819 = 315315
Step 386: 315315 + 819 = 316134
Step 387: 316134 + 819 = 316953
Step 388: 316953 + 819 = 317772
Step 389: 317772 + 819 = 318591
Step 390: 318591 + 819 = 319410
Step 391: 319410 + 819 = 320229
Step 392: 320229 + 819 = 321048
Step 393: 321048 + 819 = 321867
Step 394: 321867 + 819 = 322686
Step 395: 322686 + 819 = 323505
Step 396: 323505 + 819 = 324324
Step 397: 324324 + 819 = 325143
Step 398: 325143 + 819 = 325962
Step 399: 325962 + 819 = 326781
Step 400: 326781 + 819 = 327600
Step 401: 327600 + 819 = 328419
Step 402: 328419 + 819 = 329238

So, 819*402 = 329238