Alright, let's work through 8640 times 496 step by step
8640 × 496 = 496 × (8640)
+ 496 × 0 giving us 0
+ 496 × 40 giving us 19840
+ 496 × 600 that is equal 297600
+ 496 × 8000 that equals 3968000

= 4285440
