"I am going to seek help from Satan for something.
How can I find him by magic?
Is it dangerous to do that?
Is it possible?
What should I beware of?"
To summon stuff, it's quite simple honestly. Though I only summon angles for my needs and guidance if you truly wish to summon this vile spirit I must warn you, I doubt if you are a Christian that God will be very forgiving.
But your choice is yours. So, to summon something, say each syllable of their name about 30 times. (Example: my name is Mythic so you'd say if I was a spirit "myth myth myth x30 and ic ic ic ic x30)
I must warn you Satan is very tricking, and by summoning him you are messing with laws beyond punishment.
I suggest summoning Arch Angle Michael or having a bible/holy water just in case. That is if you're a Christian