We're going to solve 1791 multiplied by 8460
1791 × 8460 = 8460 × (1791)
+ 8460 × 1 that results in 8460
+ 8460 × 90 what gives us 761400
+ 8460 × 700 that results in 5922000
+ 8460 × 1000 yielding 8460000

= 15151860
