We're going to solve 9786 multiplied by 8173
9786 × 8173 = 8173 × (9786)
+ 8173 × 6 what gives us 49038
+ 8173 × 80 what gives us 653840
+ 8173 × 700 yielding 5721100
+ 8173 × 9000 resulting in 73557000

= 79980978
