Docker daemon processes
One Solution collect form web for “Docker daemon processes”
As you can see in the list the stats are basically the same (MEM, etc.).
These processes are actually just forks from the original process.
Forking is usually used to execute another application in the environment of the parent process (in this case: docker). I don’t know what docker specifically uses it for, there are many possibilities.
Some more information on the topic forking.