Alright, let's solve this math problem step by step. First, we have the number 816. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 285. So, we're going to take the number 816 and add it to itself 285 times.
Step 1: 0 + 816 = 816
Step 2: 816 + 816 = 1632
Step 3: 1632 + 816 = 2448
Step 4: 2448 + 816 = 3264
Step 5: 3264 + 816 = 4080
Step 6: 4080 + 816 = 4896
Step 7: 4896 + 816 = 5712
Step 8: 5712 + 816 = 6528
Step 9: 6528 + 816 = 7344
Step 10: 7344 + 816 = 8160
Step 11: 8160 + 816 = 8976
Step 12: 8976 + 816 = 9792
Step 13: 9792 + 816 = 10608
Step 14: 10608 + 816 = 11424
Step 15: 11424 + 816 = 12240
Step 16: 12240 + 816 = 13056
Step 17: 13056 + 816 = 13872
Step 18: 13872 + 816 = 14688
Step 19: 14688 + 816 = 15504
Step 20: 15504 + 816 = 16320
Step 21: 16320 + 816 = 17136
Step 22: 17136 + 816 = 17952
Step 23: 17952 + 816 = 18768
Step 24: 18768 + 816 = 19584
Step 25: 19584 + 816 = 20400
Step 26: 20400 + 816 = 21216
Step 27: 21216 + 816 = 22032
Step 28: 22032 + 816 = 22848
Step 29: 22848 + 816 = 23664
Step 30: 23664 + 816 = 24480
Step 31: 24480 + 816 = 25296
Step 32: 25296 + 816 = 26112
Step 33: 26112 + 816 = 26928
Step 34: 26928 + 816 = 27744
Step 35: 27744 + 816 = 28560
Step 36: 28560 + 816 = 29376
Step 37: 29376 + 816 = 30192
Step 38: 30192 + 816 = 31008
Step 39: 31008 + 816 = 31824
Step 40: 31824 + 816 = 32640
Step 41: 32640 + 816 = 33456
Step 42: 33456 + 816 = 34272
Step 43: 34272 + 816 = 35088
Step 44: 35088 + 816 = 35904
Step 45: 35904 + 816 = 36720
Step 46: 36720 + 816 = 37536
Step 47: 37536 + 816 = 38352
Step 48: 38352 + 816 = 39168
Step 49: 39168 + 816 = 39984
Step 50: 39984 + 816 = 40800
Step 51: 40800 + 816 = 41616
Step 52: 41616 + 816 = 42432
Step 53: 42432 + 816 = 43248
Step 54: 43248 + 816 = 44064
Step 55: 44064 + 816 = 44880
Step 56: 44880 + 816 = 45696
Step 57: 45696 + 816 = 46512
Step 58: 46512 + 816 = 47328
Step 59: 47328 + 816 = 48144
Step 60: 48144 + 816 = 48960
Step 61: 48960 + 816 = 49776
Step 62: 49776 + 816 = 50592
Step 63: 50592 + 816 = 51408
Step 64: 51408 + 816 = 52224
Step 65: 52224 + 816 = 53040
Step 66: 53040 + 816 = 53856
Step 67: 53856 + 816 = 54672
Step 68: 54672 + 816 = 55488
Step 69: 55488 + 816 = 56304
Step 70: 56304 + 816 = 57120
Step 71: 57120 + 816 = 57936
Step 72: 57936 + 816 = 58752
Step 73: 58752 + 816 = 59568
Step 74: 59568 + 816 = 60384
Step 75: 60384 + 816 = 61200
Step 76: 61200 + 816 = 62016
Step 77: 62016 + 816 = 62832
Step 78: 62832 + 816 = 63648
Step 79: 63648 + 816 = 64464
Step 80: 64464 + 816 = 65280
Step 81: 65280 + 816 = 66096
Step 82: 66096 + 816 = 66912
Step 83: 66912 + 816 = 67728
Step 84: 67728 + 816 = 68544
Step 85: 68544 + 816 = 69360
Step 86: 69360 + 816 = 70176
Step 87: 70176 + 816 = 70992
Step 88: 70992 + 816 = 71808
Step 89: 71808 + 816 = 72624
Step 90: 72624 + 816 = 73440
Step 91: 73440 + 816 = 74256
Step 92: 74256 + 816 = 75072
Step 93: 75072 + 816 = 75888
Step 94: 75888 + 816 = 76704
Step 95: 76704 + 816 = 77520
Step 96: 77520 + 816 = 78336
Step 97: 78336 + 816 = 79152
Step 98: 79152 + 816 = 79968
Step 99: 79968 + 816 = 80784
Step 100: 80784 + 816 = 81600
Step 101: 81600 + 816 = 82416
Step 102: 82416 + 816 = 83232
Step 103: 83232 + 816 = 84048
Step 104: 84048 + 816 = 84864
Step 105: 84864 + 816 = 85680
Step 106: 85680 + 816 = 86496
Step 107: 86496 + 816 = 87312
Step 108: 87312 + 816 = 88128
Step 109: 88128 + 816 = 88944
Step 110: 88944 + 816 = 89760
Step 111: 89760 + 816 = 90576
Step 112: 90576 + 816 = 91392
Step 113: 91392 + 816 = 92208
Step 114: 92208 + 816 = 93024
Step 115: 93024 + 816 = 93840
Step 116: 93840 + 816 = 94656
Step 117: 94656 + 816 = 95472
Step 118: 95472 + 816 = 96288
Step 119: 96288 + 816 = 97104
Step 120: 97104 + 816 = 97920
Step 121: 97920 + 816 = 98736
Step 122: 98736 + 816 = 99552
Step 123: 99552 + 816 = 100368
Step 124: 100368 + 816 = 101184
Step 125: 101184 + 816 = 102000
Step 126: 102000 + 816 = 102816
Step 127: 102816 + 816 = 103632
Step 128: 103632 + 816 = 104448
Step 129: 104448 + 816 = 105264
Step 130: 105264 + 816 = 106080
Step 131: 106080 + 816 = 106896
Step 132: 106896 + 816 = 107712
Step 133: 107712 + 816 = 108528
Step 134: 108528 + 816 = 109344
Step 135: 109344 + 816 = 110160
Step 136: 110160 + 816 = 110976
Step 137: 110976 + 816 = 111792
Step 138: 111792 + 816 = 112608
Step 139: 112608 + 816 = 113424
Step 140: 113424 + 816 = 114240
Step 141: 114240 + 816 = 115056
Step 142: 115056 + 816 = 115872
Step 143: 115872 + 816 = 116688
Step 144: 116688 + 816 = 117504
Step 145: 117504 + 816 = 118320
Step 146: 118320 + 816 = 119136
Step 147: 119136 + 816 = 119952
Step 148: 119952 + 816 = 120768
Step 149: 120768 + 816 = 121584
Step 150: 121584 + 816 = 122400
Step 151: 122400 + 816 = 123216
Step 152: 123216 + 816 = 124032
Step 153: 124032 + 816 = 124848
Step 154: 124848 + 816 = 125664
Step 155: 125664 + 816 = 126480
Step 156: 126480 + 816 = 127296
Step 157: 127296 + 816 = 128112
Step 158: 128112 + 816 = 128928
Step 159: 128928 + 816 = 129744
Step 160: 129744 + 816 = 130560
Step 161: 130560 + 816 = 131376
Step 162: 131376 + 816 = 132192
Step 163: 132192 + 816 = 133008
Step 164: 133008 + 816 = 133824
Step 165: 133824 + 816 = 134640
Step 166: 134640 + 816 = 135456
Step 167: 135456 + 816 = 136272
Step 168: 136272 + 816 = 137088
Step 169: 137088 + 816 = 137904
Step 170: 137904 + 816 = 138720
Step 171: 138720 + 816 = 139536
Step 172: 139536 + 816 = 140352
Step 173: 140352 + 816 = 141168
Step 174: 141168 + 816 = 141984
Step 175: 141984 + 816 = 142800
Step 176: 142800 + 816 = 143616
Step 177: 143616 + 816 = 144432
Step 178: 144432 + 816 = 145248
Step 179: 145248 + 816 = 146064
Step 180: 146064 + 816 = 146880
Step 181: 146880 + 816 = 147696
Step 182: 147696 + 816 = 148512
Step 183: 148512 + 816 = 149328
Step 184: 149328 + 816 = 150144
Step 185: 150144 + 816 = 150960
Step 186: 150960 + 816 = 151776
Step 187: 151776 + 816 = 152592
Step 188: 152592 + 816 = 153408
Step 189: 153408 + 816 = 154224
Step 190: 154224 + 816 = 155040
Step 191: 155040 + 816 = 155856
Step 192: 155856 + 816 = 156672
Step 193: 156672 + 816 = 157488
Step 194: 157488 + 816 = 158304
Step 195: 158304 + 816 = 159120
Step 196: 159120 + 816 = 159936
Step 197: 159936 + 816 = 160752
Step 198: 160752 + 816 = 161568
Step 199: 161568 + 816 = 162384
Step 200: 162384 + 816 = 163200
Step 201: 163200 + 816 = 164016
Step 202: 164016 + 816 = 164832
Step 203: 164832 + 816 = 165648
Step 204: 165648 + 816 = 166464
Step 205: 166464 + 816 = 167280
Step 206: 167280 + 816 = 168096
Step 207: 168096 + 816 = 168912
Step 208: 168912 + 816 = 169728
Step 209: 169728 + 816 = 170544
Step 210: 170544 + 816 = 171360
Step 211: 171360 + 816 = 172176
Step 212: 172176 + 816 = 172992
Step 213: 172992 + 816 = 173808
Step 214: 173808 + 816 = 174624
Step 215: 174624 + 816 = 175440
Step 216: 175440 + 816 = 176256
Step 217: 176256 + 816 = 177072
Step 218: 177072 + 816 = 177888
Step 219: 177888 + 816 = 178704
Step 220: 178704 + 816 = 179520
Step 221: 179520 + 816 = 180336
Step 222: 180336 + 816 = 181152
Step 223: 181152 + 816 = 181968
Step 224: 181968 + 816 = 182784
Step 225: 182784 + 816 = 183600
Step 226: 183600 + 816 = 184416
Step 227: 184416 + 816 = 185232
Step 228: 185232 + 816 = 186048
Step 229: 186048 + 816 = 186864
Step 230: 186864 + 816 = 187680
Step 231: 187680 + 816 = 188496
Step 232: 188496 + 816 = 189312
Step 233: 189312 + 816 = 190128
Step 234: 190128 + 816 = 190944
Step 235: 190944 + 816 = 191760
Step 236: 191760 + 816 = 192576
Step 237: 192576 + 816 = 193392
Step 238: 193392 + 816 = 194208
Step 239: 194208 + 816 = 195024
Step 240: 195024 + 816 = 195840
Step 241: 195840 + 816 = 196656
Step 242: 196656 + 816 = 197472
Step 243: 197472 + 816 = 198288
Step 244: 198288 + 816 = 199104
Step 245: 199104 + 816 = 199920
Step 246: 199920 + 816 = 200736
Step 247: 200736 + 816 = 201552
Step 248: 201552 + 816 = 202368
Step 249: 202368 + 816 = 203184
Step 250: 203184 + 816 = 204000
Step 251: 204000 + 816 = 204816
Step 252: 204816 + 816 = 205632
Step 253: 205632 + 816 = 206448
Step 254: 206448 + 816 = 207264
Step 255: 207264 + 816 = 208080
Step 256: 208080 + 816 = 208896
Step 257: 208896 + 816 = 209712
Step 258: 209712 + 816 = 210528
Step 259: 210528 + 816 = 211344
Step 260: 211344 + 816 = 212160
Step 261: 212160 + 816 = 212976
Step 262: 212976 + 816 = 213792
Step 263: 213792 + 816 = 214608
Step 264: 214608 + 816 = 215424
Step 265: 215424 + 816 = 216240
Step 266: 216240 + 816 = 217056
Step 267: 217056 + 816 = 217872
Step 268: 217872 + 816 = 218688
Step 269: 218688 + 816 = 219504
Step 270: 219504 + 816 = 220320
Step 271: 220320 + 816 = 221136
Step 272: 221136 + 816 = 221952
Step 273: 221952 + 816 = 222768
Step 274: 222768 + 816 = 223584
Step 275: 223584 + 816 = 224400
Step 276: 224400 + 816 = 225216
Step 277: 225216 + 816 = 226032
Step 278: 226032 + 816 = 226848
Step 279: 226848 + 816 = 227664
Step 280: 227664 + 816 = 228480
Step 281: 228480 + 816 = 229296
Step 282: 229296 + 816 = 230112
Step 283: 230112 + 816 = 230928
Step 284: 230928 + 816 = 231744
Step 285: 231744 + 816 = 232560

So, 816*285 = 232560