Alright, let's work through 5403 times 4549 step by step
5403 × 4549 = 4549 × (5403)
+ 4549 × 3 yielding 13647
+ 4549 × 00 yielding 0
+ 4549 × 400 producing 1819600
+ 4549 × 5000 that equals 22745000

= 24578247
