divide a 10 Mhz signal by 1000 ...

[F1CHF]

I got a very nice answer on that subject
here
Hello François

Have an eye Here: http://www.leapsecond.com/pic/picdiv.htm

Alain

[Ioannis]

Great idea. They use external signal as PIC clock and then execute a timed delay to toggle output. So the output has the precision of the input clock signal! Brilliant!

Ioannis