We're going to solve 8645 multiplied by 7750
8645 × 7750 = 7750 × (8645)
+ 7750 × 5 which equals 38750
+ 7750 × 40 what gives us 310000
+ 7750 × 600 yielding 4650000
+ 7750 × 8000 that equals 62000000

= 66998750
