Count space " "

Sir's

Pls, i would find all free space in this txt-line?
and after creat en second ligne.

How i have to do.

My beste Regards

Arnold


==================

cls

$test = "eutururu: jfot juyyt rtre ltl djfu; 12 345 dkdoe siiy XXhwtt. 33 kiyXy vhgd clr!" 
$test.length
$ins = "`n"""
if ($test.lenght -lt 35)
{   
    $pos = [int]$test.length / 2
    $num
    $test.Insert($pos,$ins)
}