Alright, let's work through 3859 times 839 step by step
3859 × 839 = 839 × (3859)
+ 839 × 9 that results in 7551
+ 839 × 50 that is equal 41950
+ 839 × 800 yielding 671200
+ 839 × 3000 which equals 2517000

= 3237701
