Alright, let's work through 6681 times 4003 step by step
6681 × 4003 = 4003 × (6681)
+ 4003 × 1 resulting in 4003
+ 4003 × 80 producing 320240
+ 4003 × 600 that results in 2401800
+ 4003 × 6000 that is equal 24018000

= 26744043
