No problem, we've got 4143 and 5278 to multiply
4143 × 5278 = 5278 × (4143)
+ 5278 × 3 that is equal 15834
+ 5278 × 40 giving us 211120
+ 5278 × 100 resulting in 527800
+ 5278 × 4000 giving us 21112000

= 21866754
