No problem, we've got 2640 and 9515 to multiply
2640 × 9515 = 9515 × (2640)
+ 9515 × 0 producing 0
+ 9515 × 40 which equals 380600
+ 9515 × 600 which equals 5709000
+ 9515 × 2000 that equals 19030000

= 25119600
