No problem, we've got 3989 and 4756 to multiply
3989 × 4756 = 4756 × (3989)
+ 4756 × 9 producing 42804
+ 4756 × 80 that is equal 380480
+ 4756 × 900 that equals 4280400
+ 4756 × 3000 resulting in 14268000

= 18971684
