Alright, let's work through 1869 times 3909 step by step
1869 × 3909 = 3909 × (1869)
+ 3909 × 9 what gives us 35181
+ 3909 × 60 resulting in 234540
+ 3909 × 800 that results in 3127200
+ 3909 × 1000 that is equal 3909000

= 7305921
