No problem, we've got 2537 and 8087 to multiply
2537 × 8087 = 8087 × (2537)
+ 8087 × 7 that is equal 56609
+ 8087 × 30 which equals 242610
+ 8087 × 500 that equals 4043500
+ 8087 × 2000 that equals 16174000

= 20516719
