No problem, we've got 7991 and 2815 to multiply
7991 × 2815 = 2815 × (7991)
+ 2815 × 1 that results in 2815
+ 2815 × 90 that equals 253350
+ 2815 × 900 that equals 2533500
+ 2815 × 7000 that is equal 19705000

= 22494665
