We're going to solve 7780 multiplied by 9330
7780 × 9330 = 9330 × (7780)
+ 9330 × 0 what gives us 0
+ 9330 × 80 giving us 746400
+ 9330 × 700 what gives us 6531000
+ 9330 × 7000 yielding 65310000

= 72587400
