Alright, let's work through 7003 times 1715 step by step
7003 × 1715 = 1715 × (7003)
+ 1715 × 3 producing 5145
+ 1715 × 00 that equals 0
+ 1715 × 000 producing 0
+ 1715 × 7000 that equals 12005000

= 12010145
