The best and only real explanation of the 4 count breath I found after doing a google search is here: https://www.youtube.com/watch?v=tuGhVZeIu2M
, (The 21 Day Breathing Challenge). I actually remember this challenge
Anyways, the explanation of how to do 4 count breath can be found at exactly 1:30 to 2:10 (1 minute and 30 seconds into the video). Something also worth noting to anyone who happens to read this post, the challenge in this video is extremely difficult, and I don't suggest trying it on a whim. I'm linking this video purely for the brief instruction of the 4 count breath that can be found within it.
I seen Marlen in the comments of this video with a good point: "not to make it a method but rather a point of remaining here as breath."
Side Note: I'm pretty good at google searches.. this is all I could find and i'm sharing it because it was "difficult" to search for.