Alright, let's work through 3145 times 2539 step by step
3145 × 2539 = 2539 × (3145)
+ 2539 × 5 which equals 12695
+ 2539 × 40 resulting in 101560
+ 2539 × 100 that results in 253900
+ 2539 × 3000 giving us 7617000

= 7985155
