We're going to solve 6446 multiplied by 291
6446 × 291 = 291 × (6446)
+ 291 × 6 that is equal 1746
+ 291 × 40 resulting in 11640
+ 291 × 400 that is equal 116400
+ 291 × 6000 what gives us 1746000

= 1875786
