No problem, we've got 4075 and 4575 to multiply
4075 × 4575 = 4575 × (4075)
+ 4575 × 5 that results in 22875
+ 4575 × 70 giving us 320250
+ 4575 × 000 yielding 0
+ 4575 × 4000 giving us 18300000

= 18643125
