We're going to solve 8447 multiplied by 1407
8447 × 1407 = 1407 × (8447)
+ 1407 × 7 that is equal 9849
+ 1407 × 40 that equals 56280
+ 1407 × 400 producing 562800
+ 1407 × 8000 resulting in 11256000

= 11884929
