Alright, let's work through 4031 times 6667 step by step
4031 × 6667 = 6667 × (4031)
+ 6667 × 1 that is equal 6667
+ 6667 × 30 that results in 200010
+ 6667 × 000 which equals 0
+ 6667 × 4000 producing 26668000

= 26874677
