Alright, let's work through 2389 times 8806 step by step
2389 × 8806 = 8806 × (2389)
+ 8806 × 9 resulting in 79254
+ 8806 × 80 giving us 704480
+ 8806 × 300 what gives us 2641800
+ 8806 × 2000 producing 17612000

= 21037534
