We're going to solve 7891 multiplied by 9770
7891 × 9770 = 9770 × (7891)
+ 9770 × 1 yielding 9770
+ 9770 × 90 what gives us 879300
+ 9770 × 800 that is equal 7816000
+ 9770 × 7000 producing 68390000

= 77095070
