Alright, let's work through 7700 times 6857 step by step
7700 × 6857 = 6857 × (7700)
+ 6857 × 0 yielding 0
+ 6857 × 00 resulting in 0
+ 6857 × 700 that is equal 4799900
+ 6857 × 7000 that equals 47999000

= 52798900
