We're going to solve 8507 multiplied by 7770
8507 × 7770 = 7770 × (8507)
+ 7770 × 7 which equals 54390
+ 7770 × 00 producing 0
+ 7770 × 500 that is equal 3885000
+ 7770 × 8000 yielding 62160000

= 66099390
