Let's calculate 8637 x 8087
8637 × 8087 = 8087 × (8637)
+ 8087 × 7 what gives us 56609
+ 8087 × 30 what gives us 242610
+ 8087 × 600 yielding 4852200
+ 8087 × 8000 that results in 64696000

= 69847419
