We're going to solve 3965 multiplied by 8409
3965 × 8409 = 8409 × (3965)
+ 8409 × 5 resulting in 42045
+ 8409 × 60 that is equal 504540
+ 8409 × 900 that results in 7568100
+ 8409 × 3000 that results in 25227000

= 33341685
