Going into the context of Spiritual Satanism and knowing the above, Satan and Beelzebul, in the lesser knowledge of the enemy, were divided into let's say two entities; one that is supposed to be Satan/Lucifer and would rule what we refer to as the "Hell Realm", alongside his "Brother" Beelzebul. The symbolism here is that the two identities of Saturn and Zeus, were essentially taken wholly out of context and were intermingled.
In esoteric demonology of the enemy, similarly to how Zeus divides in 3 to "Run the Universe", as such Satan and Beelzebul and Belial do divide to "Run the realms of the damned". This represents a perversion, but the original thoughts before their corruption, are present in this thread that you are reading now.