Alright, let's work through 3897 times 2838 step by step
3897 × 2838 = 2838 × (3897)
+ 2838 × 7 that results in 19866
+ 2838 × 90 that is equal 255420
+ 2838 × 800 that results in 2270400
+ 2838 × 3000 producing 8514000

= 11059686
