title: Arbitrary-precision arithmetic Explanation
body: <p>I'm trying to learn C and have come across the inability to work with REALLY big numbers (i.e., 100 digits, 1000 digits, etc.). I am aware that there exist libraries to do this, but I want to attempt to implement it myself.</p>
  
  <p>I just want to know if anyone has or can provide a very detailed, dumbed down explanation of arbitrary-precision arithmetic.</p>