Alright, let's work through 5016 times 640 step by step
5016 × 640 = 640 × (5016)
+ 640 × 6 giving us 3840
+ 640 × 10 giving us 6400
+ 640 × 000 that is equal 0
+ 640 × 5000 yielding 3200000

= 3210240
