I need police frequantces with six numbers

Mostsare just six eg. 154.255

You didnt say what area so I have included the links and info below
and will let you take it from there

Heads up that in some countries / States this can carry severe penalty.

I cannot give any direct information and it up to you to make sure you apply to the laws of your state etc

A good source of information are the two sites below

Frequencies

Scanner software

With any luck you will also find either the manual or a link to it there as well as quite a lot of other useful information that would give you guidance as to the legality