We're going to solve 9987 multiplied by 8233
9987 × 8233 = 8233 × (9987)
+ 8233 × 7 which equals 57631
+ 8233 × 80 resulting in 658640
+ 8233 × 900 what gives us 7409700
+ 8233 × 9000 yielding 74097000

= 82222971
