Alright, let's work through 3858 times 2009 step by step
3858 × 2009 = 2009 × (3858)
+ 2009 × 8 which equals 16072
+ 2009 × 50 producing 100450
+ 2009 × 800 that is equal 1607200
+ 2009 × 3000 yielding 6027000

= 7750722
