cisco router and asa 5500

[Master_net]

hello every one. i have a cisco router 2911 and asa5516x. we have 4 isp internet and l3 switch. i want to know is that possible we can use router cisco for routing and l3 for vlan and asa5516x for securty at same time or we dont need to router cisco 2911. and if we want same time use router cisco 2911 and asa 5516 x. whats solution is better? please guide me

[paul driver]

Hello
Yes you can use both the Cisco rtr and the ASA, however, can you elaborate on your original OP regards the 4 ISP circuits, are you using all 4 at present and how are they being utilized 
Maybe post a topology diagram so we can review it.