Alright, let's work through 6477 times 3505 step by step
6477 × 3505 = 3505 × (6477)
+ 3505 × 7 producing 24535
+ 3505 × 70 yielding 245350
+ 3505 × 400 which equals 1402000
+ 3505 × 6000 giving us 21030000

= 22701885
