No problem, we've got 9915 and 6615 to multiply
9915 × 6615 = 6615 × (9915)
+ 6615 × 5 that results in 33075
+ 6615 × 10 resulting in 66150
+ 6615 × 900 which equals 5953500
+ 6615 × 9000 resulting in 59535000

= 65587725
