Alright, let's work through 5220 times 8511 step by step
5220 × 8511 = 8511 × (5220)
+ 8511 × 0 what gives us 0
+ 8511 × 20 what gives us 170220
+ 8511 × 200 that is equal 1702200
+ 8511 × 5000 that is equal 42555000

= 44427420
