Alright, let's solve this math problem step by step. First, we have the number 85. 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 85 and add it to itself 402 times.
Step 1: 0 + 85 = 85
Step 2: 85 + 85 = 170
Step 3: 170 + 85 = 255
Step 4: 255 + 85 = 340
Step 5: 340 + 85 = 425
Step 6: 425 + 85 = 510
Step 7: 510 + 85 = 595
Step 8: 595 + 85 = 680
Step 9: 680 + 85 = 765
Step 10: 765 + 85 = 850
Step 11: 850 + 85 = 935
Step 12: 935 + 85 = 1020
Step 13: 1020 + 85 = 1105
Step 14: 1105 + 85 = 1190
Step 15: 1190 + 85 = 1275
Step 16: 1275 + 85 = 1360
Step 17: 1360 + 85 = 1445
Step 18: 1445 + 85 = 1530
Step 19: 1530 + 85 = 1615
Step 20: 1615 + 85 = 1700
Step 21: 1700 + 85 = 1785
Step 22: 1785 + 85 = 1870
Step 23: 1870 + 85 = 1955
Step 24: 1955 + 85 = 2040
Step 25: 2040 + 85 = 2125
Step 26: 2125 + 85 = 2210
Step 27: 2210 + 85 = 2295
Step 28: 2295 + 85 = 2380
Step 29: 2380 + 85 = 2465
Step 30: 2465 + 85 = 2550
Step 31: 2550 + 85 = 2635
Step 32: 2635 + 85 = 2720
Step 33: 2720 + 85 = 2805
Step 34: 2805 + 85 = 2890
Step 35: 2890 + 85 = 2975
Step 36: 2975 + 85 = 3060
Step 37: 3060 + 85 = 3145
Step 38: 3145 + 85 = 3230
Step 39: 3230 + 85 = 3315
Step 40: 3315 + 85 = 3400
Step 41: 3400 + 85 = 3485
Step 42: 3485 + 85 = 3570
Step 43: 3570 + 85 = 3655
Step 44: 3655 + 85 = 3740
Step 45: 3740 + 85 = 3825
Step 46: 3825 + 85 = 3910
Step 47: 3910 + 85 = 3995
Step 48: 3995 + 85 = 4080
Step 49: 4080 + 85 = 4165
Step 50: 4165 + 85 = 4250
Step 51: 4250 + 85 = 4335
Step 52: 4335 + 85 = 4420
Step 53: 4420 + 85 = 4505
Step 54: 4505 + 85 = 4590
Step 55: 4590 + 85 = 4675
Step 56: 4675 + 85 = 4760
Step 57: 4760 + 85 = 4845
Step 58: 4845 + 85 = 4930
Step 59: 4930 + 85 = 5015
Step 60: 5015 + 85 = 5100
Step 61: 5100 + 85 = 5185
Step 62: 5185 + 85 = 5270
Step 63: 5270 + 85 = 5355
Step 64: 5355 + 85 = 5440
Step 65: 5440 + 85 = 5525
Step 66: 5525 + 85 = 5610
Step 67: 5610 + 85 = 5695
Step 68: 5695 + 85 = 5780
Step 69: 5780 + 85 = 5865
Step 70: 5865 + 85 = 5950
Step 71: 5950 + 85 = 6035
Step 72: 6035 + 85 = 6120
Step 73: 6120 + 85 = 6205
Step 74: 6205 + 85 = 6290
Step 75: 6290 + 85 = 6375
Step 76: 6375 + 85 = 6460
Step 77: 6460 + 85 = 6545
Step 78: 6545 + 85 = 6630
Step 79: 6630 + 85 = 6715
Step 80: 6715 + 85 = 6800
Step 81: 6800 + 85 = 6885
Step 82: 6885 + 85 = 6970
Step 83: 6970 + 85 = 7055
Step 84: 7055 + 85 = 7140
Step 85: 7140 + 85 = 7225
Step 86: 7225 + 85 = 7310
Step 87: 7310 + 85 = 7395
Step 88: 7395 + 85 = 7480
Step 89: 7480 + 85 = 7565
Step 90: 7565 + 85 = 7650
Step 91: 7650 + 85 = 7735
Step 92: 7735 + 85 = 7820
Step 93: 7820 + 85 = 7905
Step 94: 7905 + 85 = 7990
Step 95: 7990 + 85 = 8075
Step 96: 8075 + 85 = 8160
Step 97: 8160 + 85 = 8245
Step 98: 8245 + 85 = 8330
Step 99: 8330 + 85 = 8415
Step 100: 8415 + 85 = 8500
Step 101: 8500 + 85 = 8585
Step 102: 8585 + 85 = 8670
Step 103: 8670 + 85 = 8755
Step 104: 8755 + 85 = 8840
Step 105: 8840 + 85 = 8925
Step 106: 8925 + 85 = 9010
Step 107: 9010 + 85 = 9095
Step 108: 9095 + 85 = 9180
Step 109: 9180 + 85 = 9265
Step 110: 9265 + 85 = 9350
Step 111: 9350 + 85 = 9435
Step 112: 9435 + 85 = 9520
Step 113: 9520 + 85 = 9605
Step 114: 9605 + 85 = 9690
Step 115: 9690 + 85 = 9775
Step 116: 9775 + 85 = 9860
Step 117: 9860 + 85 = 9945
Step 118: 9945 + 85 = 10030
Step 119: 10030 + 85 = 10115
Step 120: 10115 + 85 = 10200
Step 121: 10200 + 85 = 10285
Step 122: 10285 + 85 = 10370
Step 123: 10370 + 85 = 10455
Step 124: 10455 + 85 = 10540
Step 125: 10540 + 85 = 10625
Step 126: 10625 + 85 = 10710
Step 127: 10710 + 85 = 10795
Step 128: 10795 + 85 = 10880
Step 129: 10880 + 85 = 10965
Step 130: 10965 + 85 = 11050
Step 131: 11050 + 85 = 11135
Step 132: 11135 + 85 = 11220
Step 133: 11220 + 85 = 11305
Step 134: 11305 + 85 = 11390
Step 135: 11390 + 85 = 11475
Step 136: 11475 + 85 = 11560
Step 137: 11560 + 85 = 11645
Step 138: 11645 + 85 = 11730
Step 139: 11730 + 85 = 11815
Step 140: 11815 + 85 = 11900
Step 141: 11900 + 85 = 11985
Step 142: 11985 + 85 = 12070
Step 143: 12070 + 85 = 12155
Step 144: 12155 + 85 = 12240
Step 145: 12240 + 85 = 12325
Step 146: 12325 + 85 = 12410
Step 147: 12410 + 85 = 12495
Step 148: 12495 + 85 = 12580
Step 149: 12580 + 85 = 12665
Step 150: 12665 + 85 = 12750
Step 151: 12750 + 85 = 12835
Step 152: 12835 + 85 = 12920
Step 153: 12920 + 85 = 13005
Step 154: 13005 + 85 = 13090
Step 155: 13090 + 85 = 13175
Step 156: 13175 + 85 = 13260
Step 157: 13260 + 85 = 13345
Step 158: 13345 + 85 = 13430
Step 159: 13430 + 85 = 13515
Step 160: 13515 + 85 = 13600
Step 161: 13600 + 85 = 13685
Step 162: 13685 + 85 = 13770
Step 163: 13770 + 85 = 13855
Step 164: 13855 + 85 = 13940
Step 165: 13940 + 85 = 14025
Step 166: 14025 + 85 = 14110
Step 167: 14110 + 85 = 14195
Step 168: 14195 + 85 = 14280
Step 169: 14280 + 85 = 14365
Step 170: 14365 + 85 = 14450
Step 171: 14450 + 85 = 14535
Step 172: 14535 + 85 = 14620
Step 173: 14620 + 85 = 14705
Step 174: 14705 + 85 = 14790
Step 175: 14790 + 85 = 14875
Step 176: 14875 + 85 = 14960
Step 177: 14960 + 85 = 15045
Step 178: 15045 + 85 = 15130
Step 179: 15130 + 85 = 15215
Step 180: 15215 + 85 = 15300
Step 181: 15300 + 85 = 15385
Step 182: 15385 + 85 = 15470
Step 183: 15470 + 85 = 15555
Step 184: 15555 + 85 = 15640
Step 185: 15640 + 85 = 15725
Step 186: 15725 + 85 = 15810
Step 187: 15810 + 85 = 15895
Step 188: 15895 + 85 = 15980
Step 189: 15980 + 85 = 16065
Step 190: 16065 + 85 = 16150
Step 191: 16150 + 85 = 16235
Step 192: 16235 + 85 = 16320
Step 193: 16320 + 85 = 16405
Step 194: 16405 + 85 = 16490
Step 195: 16490 + 85 = 16575
Step 196: 16575 + 85 = 16660
Step 197: 16660 + 85 = 16745
Step 198: 16745 + 85 = 16830
Step 199: 16830 + 85 = 16915
Step 200: 16915 + 85 = 17000
Step 201: 17000 + 85 = 17085
Step 202: 17085 + 85 = 17170
Step 203: 17170 + 85 = 17255
Step 204: 17255 + 85 = 17340
Step 205: 17340 + 85 = 17425
Step 206: 17425 + 85 = 17510
Step 207: 17510 + 85 = 17595
Step 208: 17595 + 85 = 17680
Step 209: 17680 + 85 = 17765
Step 210: 17765 + 85 = 17850
Step 211: 17850 + 85 = 17935
Step 212: 17935 + 85 = 18020
Step 213: 18020 + 85 = 18105
Step 214: 18105 + 85 = 18190
Step 215: 18190 + 85 = 18275
Step 216: 18275 + 85 = 18360
Step 217: 18360 + 85 = 18445
Step 218: 18445 + 85 = 18530
Step 219: 18530 + 85 = 18615
Step 220: 18615 + 85 = 18700
Step 221: 18700 + 85 = 18785
Step 222: 18785 + 85 = 18870
Step 223: 18870 + 85 = 18955
Step 224: 18955 + 85 = 19040
Step 225: 19040 + 85 = 19125
Step 226: 19125 + 85 = 19210
Step 227: 19210 + 85 = 19295
Step 228: 19295 + 85 = 19380
Step 229: 19380 + 85 = 19465
Step 230: 19465 + 85 = 19550
Step 231: 19550 + 85 = 19635
Step 232: 19635 + 85 = 19720
Step 233: 19720 + 85 = 19805
Step 234: 19805 + 85 = 19890
Step 235: 19890 + 85 = 19975
Step 236: 19975 + 85 = 20060
Step 237: 20060 + 85 = 20145
Step 238: 20145 + 85 = 20230
Step 239: 20230 + 85 = 20315
Step 240: 20315 + 85 = 20400
Step 241: 20400 + 85 = 20485
Step 242: 20485 + 85 = 20570
Step 243: 20570 + 85 = 20655
Step 244: 20655 + 85 = 20740
Step 245: 20740 + 85 = 20825
Step 246: 20825 + 85 = 20910
Step 247: 20910 + 85 = 20995
Step 248: 20995 + 85 = 21080
Step 249: 21080 + 85 = 21165
Step 250: 21165 + 85 = 21250
Step 251: 21250 + 85 = 21335
Step 252: 21335 + 85 = 21420
Step 253: 21420 + 85 = 21505
Step 254: 21505 + 85 = 21590
Step 255: 21590 + 85 = 21675
Step 256: 21675 + 85 = 21760
Step 257: 21760 + 85 = 21845
Step 258: 21845 + 85 = 21930
Step 259: 21930 + 85 = 22015
Step 260: 22015 + 85 = 22100
Step 261: 22100 + 85 = 22185
Step 262: 22185 + 85 = 22270
Step 263: 22270 + 85 = 22355
Step 264: 22355 + 85 = 22440
Step 265: 22440 + 85 = 22525
Step 266: 22525 + 85 = 22610
Step 267: 22610 + 85 = 22695
Step 268: 22695 + 85 = 22780
Step 269: 22780 + 85 = 22865
Step 270: 22865 + 85 = 22950
Step 271: 22950 + 85 = 23035
Step 272: 23035 + 85 = 23120
Step 273: 23120 + 85 = 23205
Step 274: 23205 + 85 = 23290
Step 275: 23290 + 85 = 23375
Step 276: 23375 + 85 = 23460
Step 277: 23460 + 85 = 23545
Step 278: 23545 + 85 = 23630
Step 279: 23630 + 85 = 23715
Step 280: 23715 + 85 = 23800
Step 281: 23800 + 85 = 23885
Step 282: 23885 + 85 = 23970
Step 283: 23970 + 85 = 24055
Step 284: 24055 + 85 = 24140
Step 285: 24140 + 85 = 24225
Step 286: 24225 + 85 = 24310
Step 287: 24310 + 85 = 24395
Step 288: 24395 + 85 = 24480
Step 289: 24480 + 85 = 24565
Step 290: 24565 + 85 = 24650
Step 291: 24650 + 85 = 24735
Step 292: 24735 + 85 = 24820
Step 293: 24820 + 85 = 24905
Step 294: 24905 + 85 = 24990
Step 295: 24990 + 85 = 25075
Step 296: 25075 + 85 = 25160
Step 297: 25160 + 85 = 25245
Step 298: 25245 + 85 = 25330
Step 299: 25330 + 85 = 25415
Step 300: 25415 + 85 = 25500
Step 301: 25500 + 85 = 25585
Step 302: 25585 + 85 = 25670
Step 303: 25670 + 85 = 25755
Step 304: 25755 + 85 = 25840
Step 305: 25840 + 85 = 25925
Step 306: 25925 + 85 = 26010
Step 307: 26010 + 85 = 26095
Step 308: 26095 + 85 = 26180
Step 309: 26180 + 85 = 26265
Step 310: 26265 + 85 = 26350
Step 311: 26350 + 85 = 26435
Step 312: 26435 + 85 = 26520
Step 313: 26520 + 85 = 26605
Step 314: 26605 + 85 = 26690
Step 315: 26690 + 85 = 26775
Step 316: 26775 + 85 = 26860
Step 317: 26860 + 85 = 26945
Step 318: 26945 + 85 = 27030
Step 319: 27030 + 85 = 27115
Step 320: 27115 + 85 = 27200
Step 321: 27200 + 85 = 27285
Step 322: 27285 + 85 = 27370
Step 323: 27370 + 85 = 27455
Step 324: 27455 + 85 = 27540
Step 325: 27540 + 85 = 27625
Step 326: 27625 + 85 = 27710
Step 327: 27710 + 85 = 27795
Step 328: 27795 + 85 = 27880
Step 329: 27880 + 85 = 27965
Step 330: 27965 + 85 = 28050
Step 331: 28050 + 85 = 28135
Step 332: 28135 + 85 = 28220
Step 333: 28220 + 85 = 28305
Step 334: 28305 + 85 = 28390
Step 335: 28390 + 85 = 28475
Step 336: 28475 + 85 = 28560
Step 337: 28560 + 85 = 28645
Step 338: 28645 + 85 = 28730
Step 339: 28730 + 85 = 28815
Step 340: 28815 + 85 = 28900
Step 341: 28900 + 85 = 28985
Step 342: 28985 + 85 = 29070
Step 343: 29070 + 85 = 29155
Step 344: 29155 + 85 = 29240
Step 345: 29240 + 85 = 29325
Step 346: 29325 + 85 = 29410
Step 347: 29410 + 85 = 29495
Step 348: 29495 + 85 = 29580
Step 349: 29580 + 85 = 29665
Step 350: 29665 + 85 = 29750
Step 351: 29750 + 85 = 29835
Step 352: 29835 + 85 = 29920
Step 353: 29920 + 85 = 30005
Step 354: 30005 + 85 = 30090
Step 355: 30090 + 85 = 30175
Step 356: 30175 + 85 = 30260
Step 357: 30260 + 85 = 30345
Step 358: 30345 + 85 = 30430
Step 359: 30430 + 85 = 30515
Step 360: 30515 + 85 = 30600
Step 361: 30600 + 85 = 30685
Step 362: 30685 + 85 = 30770
Step 363: 30770 + 85 = 30855
Step 364: 30855 + 85 = 30940
Step 365: 30940 + 85 = 31025
Step 366: 31025 + 85 = 31110
Step 367: 31110 + 85 = 31195
Step 368: 31195 + 85 = 31280
Step 369: 31280 + 85 = 31365
Step 370: 31365 + 85 = 31450
Step 371: 31450 + 85 = 31535
Step 372: 31535 + 85 = 31620
Step 373: 31620 + 85 = 31705
Step 374: 31705 + 85 = 31790
Step 375: 31790 + 85 = 31875
Step 376: 31875 + 85 = 31960
Step 377: 31960 + 85 = 32045
Step 378: 32045 + 85 = 32130
Step 379: 32130 + 85 = 32215
Step 380: 32215 + 85 = 32300
Step 381: 32300 + 85 = 32385
Step 382: 32385 + 85 = 32470
Step 383: 32470 + 85 = 32555
Step 384: 32555 + 85 = 32640
Step 385: 32640 + 85 = 32725
Step 386: 32725 + 85 = 32810
Step 387: 32810 + 85 = 32895
Step 388: 32895 + 85 = 32980
Step 389: 32980 + 85 = 33065
Step 390: 33065 + 85 = 33150
Step 391: 33150 + 85 = 33235
Step 392: 33235 + 85 = 33320
Step 393: 33320 + 85 = 33405
Step 394: 33405 + 85 = 33490
Step 395: 33490 + 85 = 33575
Step 396: 33575 + 85 = 33660
Step 397: 33660 + 85 = 33745
Step 398: 33745 + 85 = 33830
Step 399: 33830 + 85 = 33915
Step 400: 33915 + 85 = 34000
Step 401: 34000 + 85 = 34085
Step 402: 34085 + 85 = 34170

So, 85*402 = 34170