We're going to solve 1991 multiplied by 9334
1991 × 9334 = 9334 × (1991)
+ 9334 × 1 giving us 9334
+ 9334 × 90 producing 840060
+ 9334 × 900 that is equal 8400600
+ 9334 × 1000 producing 9334000

= 18583994
