No problem, we've got 3664 and 1981 to multiply
3664 × 1981 = 1981 × (3664)
+ 1981 × 4 that results in 7924
+ 1981 × 60 resulting in 118860
+ 1981 × 600 which equals 1188600
+ 1981 × 3000 that equals 5943000

= 7258384
