Alright, let's work through 3941 times 6109 step by step
3941 × 6109 = 6109 × (3941)
+ 6109 × 1 what gives us 6109
+ 6109 × 40 that is equal 244360
+ 6109 × 900 what gives us 5498100
+ 6109 × 3000 giving us 18327000

= 24075569
