No problem, we've got 3997 and 4947 to multiply
3997 × 4947 = 4947 × (3997)
+ 4947 × 7 that equals 34629
+ 4947 × 90 that is equal 445230
+ 4947 × 900 that results in 4452300
+ 4947 × 3000 that equals 14841000

= 19773159
