Sure thing! We've got 512 and we're gonna multiply it by 255. That's the same as adding 512 to itself 255 times.
Step 1: 0 + 512 = 512
Step 2: 512 + 512 = 1024
Step 3: 1024 + 512 = 1536
Step 4: 1536 + 512 = 2048
Step 5: 2048 + 512 = 2560
Step 6: 2560 + 512 = 3072
Step 7: 3072 + 512 = 3584
Step 8: 3584 + 512 = 4096
Step 9: 4096 + 512 = 4608
Step 10: 4608 + 512 = 5120
Step 11: 5120 + 512 = 5632
Step 12: 5632 + 512 = 6144
Step 13: 6144 + 512 = 6656
Step 14: 6656 + 512 = 7168
Step 15: 7168 + 512 = 7680
Step 16: 7680 + 512 = 8192
Step 17: 8192 + 512 = 8704
Step 18: 8704 + 512 = 9216
Step 19: 9216 + 512 = 9728
Step 20: 9728 + 512 = 10240
Step 21: 10240 + 512 = 10752
Step 22: 10752 + 512 = 11264
Step 23: 11264 + 512 = 11776
Step 24: 11776 + 512 = 12288
Step 25: 12288 + 512 = 12800
Step 26: 12800 + 512 = 13312
Step 27: 13312 + 512 = 13824
Step 28: 13824 + 512 = 14336
Step 29: 14336 + 512 = 14848
Step 30: 14848 + 512 = 15360
Step 31: 15360 + 512 = 15872
Step 32: 15872 + 512 = 16384
Step 33: 16384 + 512 = 16896
Step 34: 16896 + 512 = 17408
Step 35: 17408 + 512 = 17920
Step 36: 17920 + 512 = 18432
Step 37: 18432 + 512 = 18944
Step 38: 18944 + 512 = 19456
Step 39: 19456 + 512 = 19968
Step 40: 19968 + 512 = 20480
Step 41: 20480 + 512 = 20992
Step 42: 20992 + 512 = 21504
Step 43: 21504 + 512 = 22016
Step 44: 22016 + 512 = 22528
Step 45: 22528 + 512 = 23040
Step 46: 23040 + 512 = 23552
Step 47: 23552 + 512 = 24064
Step 48: 24064 + 512 = 24576
Step 49: 24576 + 512 = 25088
Step 50: 25088 + 512 = 25600
Step 51: 25600 + 512 = 26112
Step 52: 26112 + 512 = 26624
Step 53: 26624 + 512 = 27136
Step 54: 27136 + 512 = 27648
Step 55: 27648 + 512 = 28160
Step 56: 28160 + 512 = 28672
Step 57: 28672 + 512 = 29184
Step 58: 29184 + 512 = 29696
Step 59: 29696 + 512 = 30208
Step 60: 30208 + 512 = 30720
Step 61: 30720 + 512 = 31232
Step 62: 31232 + 512 = 31744
Step 63: 31744 + 512 = 32256
Step 64: 32256 + 512 = 32768
Step 65: 32768 + 512 = 33280
Step 66: 33280 + 512 = 33792
Step 67: 33792 + 512 = 34304
Step 68: 34304 + 512 = 34816
Step 69: 34816 + 512 = 35328
Step 70: 35328 + 512 = 35840
Step 71: 35840 + 512 = 36352
Step 72: 36352 + 512 = 36864
Step 73: 36864 + 512 = 37376
Step 74: 37376 + 512 = 37888
Step 75: 37888 + 512 = 38400
Step 76: 38400 + 512 = 38912
Step 77: 38912 + 512 = 39424
Step 78: 39424 + 512 = 39936
Step 79: 39936 + 512 = 40448
Step 80: 40448 + 512 = 40960
Step 81: 40960 + 512 = 41472
Step 82: 41472 + 512 = 41984
Step 83: 41984 + 512 = 42496
Step 84: 42496 + 512 = 43008
Step 85: 43008 + 512 = 43520
Step 86: 43520 + 512 = 44032
Step 87: 44032 + 512 = 44544
Step 88: 44544 + 512 = 45056
Step 89: 45056 + 512 = 45568
Step 90: 45568 + 512 = 46080
Step 91: 46080 + 512 = 46592
Step 92: 46592 + 512 = 47104
Step 93: 47104 + 512 = 47616
Step 94: 47616 + 512 = 48128
Step 95: 48128 + 512 = 48640
Step 96: 48640 + 512 = 49152
Step 97: 49152 + 512 = 49664
Step 98: 49664 + 512 = 50176
Step 99: 50176 + 512 = 50688
Step 100: 50688 + 512 = 51200
Step 101: 51200 + 512 = 51712
Step 102: 51712 + 512 = 52224
Step 103: 52224 + 512 = 52736
Step 104: 52736 + 512 = 53248
Step 105: 53248 + 512 = 53760
Step 106: 53760 + 512 = 54272
Step 107: 54272 + 512 = 54784
Step 108: 54784 + 512 = 55296
Step 109: 55296 + 512 = 55808
Step 110: 55808 + 512 = 56320
Step 111: 56320 + 512 = 56832
Step 112: 56832 + 512 = 57344
Step 113: 57344 + 512 = 57856
Step 114: 57856 + 512 = 58368
Step 115: 58368 + 512 = 58880
Step 116: 58880 + 512 = 59392
Step 117: 59392 + 512 = 59904
Step 118: 59904 + 512 = 60416
Step 119: 60416 + 512 = 60928
Step 120: 60928 + 512 = 61440
Step 121: 61440 + 512 = 61952
Step 122: 61952 + 512 = 62464
Step 123: 62464 + 512 = 62976
Step 124: 62976 + 512 = 63488
Step 125: 63488 + 512 = 64000
Step 126: 64000 + 512 = 64512
Step 127: 64512 + 512 = 65024
Step 128: 65024 + 512 = 65536
Step 129: 65536 + 512 = 66048
Step 130: 66048 + 512 = 66560
Step 131: 66560 + 512 = 67072
Step 132: 67072 + 512 = 67584
Step 133: 67584 + 512 = 68096
Step 134: 68096 + 512 = 68608
Step 135: 68608 + 512 = 69120
Step 136: 69120 + 512 = 69632
Step 137: 69632 + 512 = 70144
Step 138: 70144 + 512 = 70656
Step 139: 70656 + 512 = 71168
Step 140: 71168 + 512 = 71680
Step 141: 71680 + 512 = 72192
Step 142: 72192 + 512 = 72704
Step 143: 72704 + 512 = 73216
Step 144: 73216 + 512 = 73728
Step 145: 73728 + 512 = 74240
Step 146: 74240 + 512 = 74752
Step 147: 74752 + 512 = 75264
Step 148: 75264 + 512 = 75776
Step 149: 75776 + 512 = 76288
Step 150: 76288 + 512 = 76800
Step 151: 76800 + 512 = 77312
Step 152: 77312 + 512 = 77824
Step 153: 77824 + 512 = 78336
Step 154: 78336 + 512 = 78848
Step 155: 78848 + 512 = 79360
Step 156: 79360 + 512 = 79872
Step 157: 79872 + 512 = 80384
Step 158: 80384 + 512 = 80896
Step 159: 80896 + 512 = 81408
Step 160: 81408 + 512 = 81920
Step 161: 81920 + 512 = 82432
Step 162: 82432 + 512 = 82944
Step 163: 82944 + 512 = 83456
Step 164: 83456 + 512 = 83968
Step 165: 83968 + 512 = 84480
Step 166: 84480 + 512 = 84992
Step 167: 84992 + 512 = 85504
Step 168: 85504 + 512 = 86016
Step 169: 86016 + 512 = 86528
Step 170: 86528 + 512 = 87040
Step 171: 87040 + 512 = 87552
Step 172: 87552 + 512 = 88064
Step 173: 88064 + 512 = 88576
Step 174: 88576 + 512 = 89088
Step 175: 89088 + 512 = 89600
Step 176: 89600 + 512 = 90112
Step 177: 90112 + 512 = 90624
Step 178: 90624 + 512 = 91136
Step 179: 91136 + 512 = 91648
Step 180: 91648 + 512 = 92160
Step 181: 92160 + 512 = 92672
Step 182: 92672 + 512 = 93184
Step 183: 93184 + 512 = 93696
Step 184: 93696 + 512 = 94208
Step 185: 94208 + 512 = 94720
Step 186: 94720 + 512 = 95232
Step 187: 95232 + 512 = 95744
Step 188: 95744 + 512 = 96256
Step 189: 96256 + 512 = 96768
Step 190: 96768 + 512 = 97280
Step 191: 97280 + 512 = 97792
Step 192: 97792 + 512 = 98304
Step 193: 98304 + 512 = 98816
Step 194: 98816 + 512 = 99328
Step 195: 99328 + 512 = 99840
Step 196: 99840 + 512 = 100352
Step 197: 100352 + 512 = 100864
Step 198: 100864 + 512 = 101376
Step 199: 101376 + 512 = 101888
Step 200: 101888 + 512 = 102400
Step 201: 102400 + 512 = 102912
Step 202: 102912 + 512 = 103424
Step 203: 103424 + 512 = 103936
Step 204: 103936 + 512 = 104448
Step 205: 104448 + 512 = 104960
Step 206: 104960 + 512 = 105472
Step 207: 105472 + 512 = 105984
Step 208: 105984 + 512 = 106496
Step 209: 106496 + 512 = 107008
Step 210: 107008 + 512 = 107520
Step 211: 107520 + 512 = 108032
Step 212: 108032 + 512 = 108544
Step 213: 108544 + 512 = 109056
Step 214: 109056 + 512 = 109568
Step 215: 109568 + 512 = 110080
Step 216: 110080 + 512 = 110592
Step 217: 110592 + 512 = 111104
Step 218: 111104 + 512 = 111616
Step 219: 111616 + 512 = 112128
Step 220: 112128 + 512 = 112640
Step 221: 112640 + 512 = 113152
Step 222: 113152 + 512 = 113664
Step 223: 113664 + 512 = 114176
Step 224: 114176 + 512 = 114688
Step 225: 114688 + 512 = 115200
Step 226: 115200 + 512 = 115712
Step 227: 115712 + 512 = 116224
Step 228: 116224 + 512 = 116736
Step 229: 116736 + 512 = 117248
Step 230: 117248 + 512 = 117760
Step 231: 117760 + 512 = 118272
Step 232: 118272 + 512 = 118784
Step 233: 118784 + 512 = 119296
Step 234: 119296 + 512 = 119808
Step 235: 119808 + 512 = 120320
Step 236: 120320 + 512 = 120832
Step 237: 120832 + 512 = 121344
Step 238: 121344 + 512 = 121856
Step 239: 121856 + 512 = 122368
Step 240: 122368 + 512 = 122880
Step 241: 122880 + 512 = 123392
Step 242: 123392 + 512 = 123904
Step 243: 123904 + 512 = 124416
Step 244: 124416 + 512 = 124928
Step 245: 124928 + 512 = 125440
Step 246: 125440 + 512 = 125952
Step 247: 125952 + 512 = 126464
Step 248: 126464 + 512 = 126976
Step 249: 126976 + 512 = 127488
Step 250: 127488 + 512 = 128000
Step 251: 128000 + 512 = 128512
Step 252: 128512 + 512 = 129024
Step 253: 129024 + 512 = 129536
Step 254: 129536 + 512 = 130048
Step 255: 130048 + 512 = 130560

So, 512*255 = 130560