Alright, let's work through 6407 times 8806 step by step
6407 × 8806 = 8806 × (6407)
+ 8806 × 7 resulting in 61642
+ 8806 × 00 that results in 0
+ 8806 × 400 yielding 3522400
+ 8806 × 6000 which equals 52836000

= 56420042
