Alright, let's work through 6778 times 6477 step by step
6778 × 6477 = 6477 × (6778)
+ 6477 × 8 yielding 51816
+ 6477 × 70 that is equal 453390
+ 6477 × 700 that is equal 4533900
+ 6477 × 6000 that equals 38862000

= 43901106
