Alright, let's work through 2687 times 3139 step by step
2687 × 3139 = 3139 × (2687)
+ 3139 × 7 which equals 21973
+ 3139 × 80 that is equal 251120
+ 3139 × 600 that results in 1883400
+ 3139 × 2000 which equals 6278000

= 8434493
