No problem, we've got 3151 and 6291 to multiply
3151 × 6291 = 6291 × (3151)
+ 6291 × 1 that equals 6291
+ 6291 × 50 that is equal 314550
+ 6291 × 100 giving us 629100
+ 6291 × 3000 what gives us 18873000

= 19822941
