No problem, we've got 8187 and 3897 to multiply
8187 × 3897 = 3897 × (8187)
+ 3897 × 7 what gives us 27279
+ 3897 × 80 what gives us 311760
+ 3897 × 100 yielding 389700
+ 3897 × 8000 that results in 31176000

= 31904739
