Alright, let's solve this math problem step by step. First, we have the number 853. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 200. So, we're going to take the number 853 and add it to itself 200 times.
Step 1: 0 + 853 = 853
Step 2: 853 + 853 = 1706
Step 3: 1706 + 853 = 2559
Step 4: 2559 + 853 = 3412
Step 5: 3412 + 853 = 4265
Step 6: 4265 + 853 = 5118
Step 7: 5118 + 853 = 5971
Step 8: 5971 + 853 = 6824
Step 9: 6824 + 853 = 7677
Step 10: 7677 + 853 = 8530
Step 11: 8530 + 853 = 9383
Step 12: 9383 + 853 = 10236
Step 13: 10236 + 853 = 11089
Step 14: 11089 + 853 = 11942
Step 15: 11942 + 853 = 12795
Step 16: 12795 + 853 = 13648
Step 17: 13648 + 853 = 14501
Step 18: 14501 + 853 = 15354
Step 19: 15354 + 853 = 16207
Step 20: 16207 + 853 = 17060
Step 21: 17060 + 853 = 17913
Step 22: 17913 + 853 = 18766
Step 23: 18766 + 853 = 19619
Step 24: 19619 + 853 = 20472
Step 25: 20472 + 853 = 21325
Step 26: 21325 + 853 = 22178
Step 27: 22178 + 853 = 23031
Step 28: 23031 + 853 = 23884
Step 29: 23884 + 853 = 24737
Step 30: 24737 + 853 = 25590
Step 31: 25590 + 853 = 26443
Step 32: 26443 + 853 = 27296
Step 33: 27296 + 853 = 28149
Step 34: 28149 + 853 = 29002
Step 35: 29002 + 853 = 29855
Step 36: 29855 + 853 = 30708
Step 37: 30708 + 853 = 31561
Step 38: 31561 + 853 = 32414
Step 39: 32414 + 853 = 33267
Step 40: 33267 + 853 = 34120
Step 41: 34120 + 853 = 34973
Step 42: 34973 + 853 = 35826
Step 43: 35826 + 853 = 36679
Step 44: 36679 + 853 = 37532
Step 45: 37532 + 853 = 38385
Step 46: 38385 + 853 = 39238
Step 47: 39238 + 853 = 40091
Step 48: 40091 + 853 = 40944
Step 49: 40944 + 853 = 41797
Step 50: 41797 + 853 = 42650
Step 51: 42650 + 853 = 43503
Step 52: 43503 + 853 = 44356
Step 53: 44356 + 853 = 45209
Step 54: 45209 + 853 = 46062
Step 55: 46062 + 853 = 46915
Step 56: 46915 + 853 = 47768
Step 57: 47768 + 853 = 48621
Step 58: 48621 + 853 = 49474
Step 59: 49474 + 853 = 50327
Step 60: 50327 + 853 = 51180
Step 61: 51180 + 853 = 52033
Step 62: 52033 + 853 = 52886
Step 63: 52886 + 853 = 53739
Step 64: 53739 + 853 = 54592
Step 65: 54592 + 853 = 55445
Step 66: 55445 + 853 = 56298
Step 67: 56298 + 853 = 57151
Step 68: 57151 + 853 = 58004
Step 69: 58004 + 853 = 58857
Step 70: 58857 + 853 = 59710
Step 71: 59710 + 853 = 60563
Step 72: 60563 + 853 = 61416
Step 73: 61416 + 853 = 62269
Step 74: 62269 + 853 = 63122
Step 75: 63122 + 853 = 63975
Step 76: 63975 + 853 = 64828
Step 77: 64828 + 853 = 65681
Step 78: 65681 + 853 = 66534
Step 79: 66534 + 853 = 67387
Step 80: 67387 + 853 = 68240
Step 81: 68240 + 853 = 69093
Step 82: 69093 + 853 = 69946
Step 83: 69946 + 853 = 70799
Step 84: 70799 + 853 = 71652
Step 85: 71652 + 853 = 72505
Step 86: 72505 + 853 = 73358
Step 87: 73358 + 853 = 74211
Step 88: 74211 + 853 = 75064
Step 89: 75064 + 853 = 75917
Step 90: 75917 + 853 = 76770
Step 91: 76770 + 853 = 77623
Step 92: 77623 + 853 = 78476
Step 93: 78476 + 853 = 79329
Step 94: 79329 + 853 = 80182
Step 95: 80182 + 853 = 81035
Step 96: 81035 + 853 = 81888
Step 97: 81888 + 853 = 82741
Step 98: 82741 + 853 = 83594
Step 99: 83594 + 853 = 84447
Step 100: 84447 + 853 = 85300
Step 101: 85300 + 853 = 86153
Step 102: 86153 + 853 = 87006
Step 103: 87006 + 853 = 87859
Step 104: 87859 + 853 = 88712
Step 105: 88712 + 853 = 89565
Step 106: 89565 + 853 = 90418
Step 107: 90418 + 853 = 91271
Step 108: 91271 + 853 = 92124
Step 109: 92124 + 853 = 92977
Step 110: 92977 + 853 = 93830
Step 111: 93830 + 853 = 94683
Step 112: 94683 + 853 = 95536
Step 113: 95536 + 853 = 96389
Step 114: 96389 + 853 = 97242
Step 115: 97242 + 853 = 98095
Step 116: 98095 + 853 = 98948
Step 117: 98948 + 853 = 99801
Step 118: 99801 + 853 = 100654
Step 119: 100654 + 853 = 101507
Step 120: 101507 + 853 = 102360
Step 121: 102360 + 853 = 103213
Step 122: 103213 + 853 = 104066
Step 123: 104066 + 853 = 104919
Step 124: 104919 + 853 = 105772
Step 125: 105772 + 853 = 106625
Step 126: 106625 + 853 = 107478
Step 127: 107478 + 853 = 108331
Step 128: 108331 + 853 = 109184
Step 129: 109184 + 853 = 110037
Step 130: 110037 + 853 = 110890
Step 131: 110890 + 853 = 111743
Step 132: 111743 + 853 = 112596
Step 133: 112596 + 853 = 113449
Step 134: 113449 + 853 = 114302
Step 135: 114302 + 853 = 115155
Step 136: 115155 + 853 = 116008
Step 137: 116008 + 853 = 116861
Step 138: 116861 + 853 = 117714
Step 139: 117714 + 853 = 118567
Step 140: 118567 + 853 = 119420
Step 141: 119420 + 853 = 120273
Step 142: 120273 + 853 = 121126
Step 143: 121126 + 853 = 121979
Step 144: 121979 + 853 = 122832
Step 145: 122832 + 853 = 123685
Step 146: 123685 + 853 = 124538
Step 147: 124538 + 853 = 125391
Step 148: 125391 + 853 = 126244
Step 149: 126244 + 853 = 127097
Step 150: 127097 + 853 = 127950
Step 151: 127950 + 853 = 128803
Step 152: 128803 + 853 = 129656
Step 153: 129656 + 853 = 130509
Step 154: 130509 + 853 = 131362
Step 155: 131362 + 853 = 132215
Step 156: 132215 + 853 = 133068
Step 157: 133068 + 853 = 133921
Step 158: 133921 + 853 = 134774
Step 159: 134774 + 853 = 135627
Step 160: 135627 + 853 = 136480
Step 161: 136480 + 853 = 137333
Step 162: 137333 + 853 = 138186
Step 163: 138186 + 853 = 139039
Step 164: 139039 + 853 = 139892
Step 165: 139892 + 853 = 140745
Step 166: 140745 + 853 = 141598
Step 167: 141598 + 853 = 142451
Step 168: 142451 + 853 = 143304
Step 169: 143304 + 853 = 144157
Step 170: 144157 + 853 = 145010
Step 171: 145010 + 853 = 145863
Step 172: 145863 + 853 = 146716
Step 173: 146716 + 853 = 147569
Step 174: 147569 + 853 = 148422
Step 175: 148422 + 853 = 149275
Step 176: 149275 + 853 = 150128
Step 177: 150128 + 853 = 150981
Step 178: 150981 + 853 = 151834
Step 179: 151834 + 853 = 152687
Step 180: 152687 + 853 = 153540
Step 181: 153540 + 853 = 154393
Step 182: 154393 + 853 = 155246
Step 183: 155246 + 853 = 156099
Step 184: 156099 + 853 = 156952
Step 185: 156952 + 853 = 157805
Step 186: 157805 + 853 = 158658
Step 187: 158658 + 853 = 159511
Step 188: 159511 + 853 = 160364
Step 189: 160364 + 853 = 161217
Step 190: 161217 + 853 = 162070
Step 191: 162070 + 853 = 162923
Step 192: 162923 + 853 = 163776
Step 193: 163776 + 853 = 164629
Step 194: 164629 + 853 = 165482
Step 195: 165482 + 853 = 166335
Step 196: 166335 + 853 = 167188
Step 197: 167188 + 853 = 168041
Step 198: 168041 + 853 = 168894
Step 199: 168894 + 853 = 169747
Step 200: 169747 + 853 = 170600

So, 853*200 = 170600