Alright, let's work through 3525 times 4519 step by step
3525 × 4519 = 4519 × (3525)
+ 4519 × 5 what gives us 22595
+ 4519 × 20 yielding 90380
+ 4519 × 500 that is equal 2259500
+ 4519 × 3000 that is equal 13557000

= 15929475
