Here are some examples:
* "The remainder of the cake was eaten by the children."
* "After paying the rent, I had a small remainder of my paycheck."
* "The remainder of the day was spent reading."
It's important to note that "remainder" is not the only possible noun form, as it can also be a state of being or condition. In these cases, we would use "remaining" as the noun.
For instance:
* "The remaining students were dismissed early."
* "There was a lot of remaining work to be done."