Alright, let's work through 3792 times 519 step by step
3792 × 519 = 519 × (3792)
+ 519 × 2 that equals 1038
+ 519 × 90 that equals 46710
+ 519 × 700 what gives us 363300
+ 519 × 3000 that equals 1557000

= 1968048
