Alright, let's work through 3405 times 3081 step by step
3405 × 3081 = 3081 × (3405)
+ 3081 × 5 which equals 15405
+ 3081 × 00 giving us 0
+ 3081 × 400 that is equal 1232400
+ 3081 × 3000 giving us 9243000

= 10490805
