No problem, we've got 2439 and 9963 to multiply
2439 × 9963 = 9963 × (2439)
+ 9963 × 9 that equals 89667
+ 9963 × 30 that is equal 298890
+ 9963 × 400 resulting in 3985200
+ 9963 × 2000 that results in 19926000

= 24299757
