Alright, let's work through 3985 times 2477 step by step
3985 × 2477 = 2477 × (3985)
+ 2477 × 5 that results in 12385
+ 2477 × 80 resulting in 198160
+ 2477 × 900 that is equal 2229300
+ 2477 × 3000 producing 7431000

= 9870845
