Alright, let's work through 2687 times 4307 step by step
2687 × 4307 = 4307 × (2687)
+ 4307 × 7 which equals 30149
+ 4307 × 80 that results in 344560
+ 4307 × 600 which equals 2584200
+ 4307 × 2000 that is equal 8614000

= 11572909
