BigInteger division in C#

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I am writing a class which needs accurate division of the BigInteger class in C#.

Example:

BigInteger x = BigInteger.Parse("1000000000000000000000000000000000000000000000000000000000000000000000000000000000000");
BigInteger y = BigInteger.Parse("2000000000000000000000000000000000000000000000000000000000000000000000000000000000000");

x /= y;

Console.WriteLine(x.ToString());

//Output = 0

The problem is that being an Integer, naturally it does not hold decimal values. How can I overcome this to get the real result of 0.5 (given example).

P.S. The solution must be able to accurately divide any BigInteger, not just the example!

biginteger division .net c#
7 Answers
//b = 10x bigger as a => fraction should be 0.1
BigInteger a = BigInteger.Pow(10, 5000);
BigInteger b = BigInteger.Pow(10, 5001);

//before the division, multiple by a 1000 for a precision of 3, afterwards 
//divide the result by this.
var fraction = (double) BigInteger.Divide(a * 1000, b) / 1000;
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