Alright, let's work through 8777 times 7880 step by step
8777 × 7880 = 7880 × (8777)
+ 7880 × 7 giving us 55160
+ 7880 × 70 that results in 551600
+ 7880 × 700 which equals 5516000
+ 7880 × 8000 yielding 63040000

= 69162760
