Alright, let's work through 8416 times 8628 step by step
8416 × 8628 = 8628 × (8416)
+ 8628 × 6 resulting in 51768
+ 8628 × 10 that is equal 86280
+ 8628 × 400 giving us 3451200
+ 8628 × 8000 producing 69024000

= 72613248
