No problem, we've got 2403 and 1667 to multiply
2403 × 1667 = 1667 × (2403)
+ 1667 × 3 that equals 5001
+ 1667 × 00 producing 0
+ 1667 × 400 that results in 666800
+ 1667 × 2000 resulting in 3334000

= 4005801
