Alright, let's work through 8177 times 9520 step by step
8177 × 9520 = 9520 × (8177)
+ 9520 × 7 that is equal 66640
+ 9520 × 70 producing 666400
+ 9520 × 100 that equals 952000
+ 9520 × 8000 that results in 76160000

= 77845040
