OK, let's crack this. We're given 486 and our task is to multiply it by 53. Essentially, we'll be adding 486 to itself 53 times.
Step 1: 0 + 486 = 486
Step 2: 486 + 486 = 972
Step 3: 972 + 486 = 1458
Step 4: 1458 + 486 = 1944
Step 5: 1944 + 486 = 2430
Step 6: 2430 + 486 = 2916
Step 7: 2916 + 486 = 3402
Step 8: 3402 + 486 = 3888
Step 9: 3888 + 486 = 4374
Step 10: 4374 + 486 = 4860
Step 11: 4860 + 486 = 5346
Step 12: 5346 + 486 = 5832
Step 13: 5832 + 486 = 6318
Step 14: 6318 + 486 = 6804
Step 15: 6804 + 486 = 7290
Step 16: 7290 + 486 = 7776
Step 17: 7776 + 486 = 8262
Step 18: 8262 + 486 = 8748
Step 19: 8748 + 486 = 9234
Step 20: 9234 + 486 = 9720
Step 21: 9720 + 486 = 10206
Step 22: 10206 + 486 = 10692
Step 23: 10692 + 486 = 11178
Step 24: 11178 + 486 = 11664
Step 25: 11664 + 486 = 12150
Step 26: 12150 + 486 = 12636
Step 27: 12636 + 486 = 13122
Step 28: 13122 + 486 = 13608
Step 29: 13608 + 486 = 14094
Step 30: 14094 + 486 = 14580
Step 31: 14580 + 486 = 15066
Step 32: 15066 + 486 = 15552
Step 33: 15552 + 486 = 16038
Step 34: 16038 + 486 = 16524
Step 35: 16524 + 486 = 17010
Step 36: 17010 + 486 = 17496
Step 37: 17496 + 486 = 17982
Step 38: 17982 + 486 = 18468
Step 39: 18468 + 486 = 18954
Step 40: 18954 + 486 = 19440
Step 41: 19440 + 486 = 19926
Step 42: 19926 + 486 = 20412
Step 43: 20412 + 486 = 20898
Step 44: 20898 + 486 = 21384
Step 45: 21384 + 486 = 21870
Step 46: 21870 + 486 = 22356
Step 47: 22356 + 486 = 22842
Step 48: 22842 + 486 = 23328
Step 49: 23328 + 486 = 23814
Step 50: 23814 + 486 = 24300
Step 51: 24300 + 486 = 24786
Step 52: 24786 + 486 = 25272
Step 53: 25272 + 486 = 25758

So, 486*53 = 25758