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 186. So, we're going to take the number 85 and add it to itself 186 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

So, 85*186 = 15810