Alright, let's work through 3039 times 3810 step by step
3039 × 3810 = 3810 × (3039)
+ 3810 × 9 resulting in 34290
+ 3810 × 30 giving us 114300
+ 3810 × 000 which equals 0
+ 3810 × 3000 that equals 11430000

= 11578590
