Alright, let's work through 3405 times 1817 step by step
3405 × 1817 = 1817 × (3405)
+ 1817 × 5 yielding 9085
+ 1817 × 00 that is equal 0
+ 1817 × 400 yielding 726800
+ 1817 × 3000 giving us 5451000

= 6186885
