can i set my hercules console to my pioneer mixer?

hi all. i have always used vinyl and now have bought a hercules. ep2. i want to hook it up to my pioneer djm800 mixer. so each hercules deck is on a seperate chanel on my mixer. is this possible? i know i need a 5.1 sound card. and am tempted to buy an external one. is their a way i can hook it all up with my laptop abd mixer to use hercules through my mixer as if seperate decks? and il be thn able to use the headphones through my pioneer.