1) Request 2 IP's from RS for Nameservers
2) Go to your registrar and register the nameservers.
Example:
ns1.mynameserver.com (first IP)
ns2.mynameserver.com (second IP)
(Look for something like "create hosts" or "create nameservers". It's often hidden and with warnings not to touch it unlike you know what you're doing. Well now you do)
3) Create a domain to hold the nameservers, i.e. www.mynameserver.com. If you're a webhosting company this is usually the "Shop URL".
4) Login to that domain, (Domains -> click the link to it under "domain name") then
click Services -> DNS.
ADD A: Records
ns1.mynameserver.com (first IP)
ns2.mynameserver.com (second IP)
ADD NS: Records:
mynameserver.com ns1.mynameserver.com
mynameserver.com ns2.mynameserver.com
DELETE the A and NS records for ns.mynameserver.com, they're not used.
5) Go to SERVER -> DNS
CREATE NS records for your nameservers
[].
[].
DELETE the A and NS records for ns.
THAT'S IT. It's that simple, it's all there is to it. Nice huh