Alright, let's work through 8540 times 2211 step by step
8540 × 2211 = 2211 × (8540)
+ 2211 × 0 which equals 0
+ 2211 × 40 what gives us 88440
+ 2211 × 500 resulting in 1105500
+ 2211 × 8000 producing 17688000

= 18881940
