Let's calculate 8991 x 1504
8991 × 1504 = 1504 × (8991)
+ 1504 × 1 that results in 1504
+ 1504 × 90 what gives us 135360
+ 1504 × 900 producing 1353600
+ 1504 × 8000 resulting in 12032000

= 13522464
