Alright, let's work through 8520 times 7111 step by step
8520 × 7111 = 7111 × (8520)
+ 7111 × 0 what gives us 0
+ 7111 × 20 giving us 142220
+ 7111 × 500 yielding 3555500
+ 7111 × 8000 that is equal 56888000

= 60585720
