Alright, let's work through 4003 times 7775 step by step
4003 × 7775 = 7775 × (4003)
+ 7775 × 3 that equals 23325
+ 7775 × 00 that results in 0
+ 7775 × 000 which equals 0
+ 7775 × 4000 producing 31100000

= 31123325
