Alright, let's work through 3121 times 5082 step by step
3121 × 5082 = 5082 × (3121)
+ 5082 × 1 that results in 5082
+ 5082 × 20 producing 101640
+ 5082 × 100 that is equal 508200
+ 5082 × 3000 which equals 15246000

= 15860922
