At times default is not good. This is true in case of the default navigation option provided by wordpress. I will not dare say it’s not good, but it’s not great and very userful as one would expect it. If you’d want to customise it further, it’s really a tough job to get what you desire.
To make navigation more easier, you have the WordPress – Pagenavi plugin. This plugin is made especially for you, if you are the one who is fed up of the default navigator of wordpress. It helps give your blog a stylish and better look.
See a working demo of WordPress Pagenavi.