Alright, let's work through 3619 times 509 step by step
3619 × 509 = 509 × (3619)
+ 509 × 9 which equals 4581
+ 509 × 10 what gives us 5090
+ 509 × 600 what gives us 305400
+ 509 × 3000 what gives us 1527000

= 1842071
