No problem, we've got 3157 and 6751 to multiply
3157 × 6751 = 6751 × (3157)
+ 6751 × 7 resulting in 47257
+ 6751 × 50 that is equal 337550
+ 6751 × 100 that results in 675100
+ 6751 × 3000 what gives us 20253000

= 21312907
