No problem, we've got 3992 and 7709 to multiply
3992 × 7709 = 7709 × (3992)
+ 7709 × 2 that is equal 15418
+ 7709 × 90 that is equal 693810
+ 7709 × 900 which equals 6938100
+ 7709 × 3000 that is equal 23127000

= 30774328
