Alright, let's work through 4578 times 8628 step by step
4578 × 8628 = 8628 × (4578)
+ 8628 × 8 that is equal 69024
+ 8628 × 70 that results in 603960
+ 8628 × 500 that results in 4314000
+ 8628 × 4000 that equals 34512000

= 39498984
