By using a drill bit sized large enough for the cable.
Cable drop through attic multistories.
My cable tv is distributed through the attic so it seemed like a good solution to run my home network through there as well.
Drop the string and catch it in the wall cutout and use that to pull the cable through.
These methods will work for any cable telephone network thermostat power etc.
Step 4 drop the coaxial cable through the holes in the floor until it reaches the connection in the basement.
I ve mounted a junction box on the stud by cutting into the wall then made a small pilot hole into the attic through the ceiling to register the main hole through the 2x4.
The upstairs room solution is pretty obvious go vertically up through the wall in the computer room into the attic space run the cables to where they need to go then drop then down into the rooms punch them into the back of a wall plate done.
I have run the odd cable in my house wood frame wallboard by drilling down from the attic into the hollow wall.
Drill holes in the floors as per your markings by using a power drill equipped with a 5 8 inch drill bit.
To drill through a rug make a small cut in the rug with a utility knife and then drill down through the cut.
Install coaxial cable cable tv or satellite tv cables concealed in wall spaces from non living spaces above or below.