Alright, let's work through 3405 times 6617 step by step
3405 × 6617 = 6617 × (3405)
+ 6617 × 5 which equals 33085
+ 6617 × 00 that equals 0
+ 6617 × 400 giving us 2646800
+ 6617 × 3000 yielding 19851000

= 22530885
