Alright, let's work through 2005 times 7645 step by step
2005 × 7645 = 7645 × (2005)
+ 7645 × 5 which equals 38225
+ 7645 × 00 that is equal 0
+ 7645 × 000 yielding 0
+ 7645 × 2000 which equals 15290000

= 15328225
