avt.DynamicFlashRotator.Net.RegCore.Cryptography.BigInteger.singleByteDivide C# (CSharp) Method

        private static void singleByteDivide(BigInteger bi1, BigInteger bi2,
                                             BigInteger outQuotient, BigInteger outRemainder)
        {
            uint[] result = new uint[maxLength];
            int resultPos = 0;

            // copy dividend to reminder
            for (int i = 0; i < maxLength; i++)
                outRemainder.data[i] = bi1.data[i];
            outRemainder.dataLength = bi1.dataLength;

            while (outRemainder.dataLength > 1 && outRemainder.data[outRemainder.dataLength - 1] == 0)
                outRemainder.dataLength--;

            ulong divisor = (ulong)bi2.data[0];
            int pos = outRemainder.dataLength - 1;
            ulong dividend = (ulong)outRemainder.data[pos];

            //Console.WriteLine("divisor = " + divisor + " dividend = " + dividend);
            //Console.WriteLine("divisor = " + bi2 + "\ndividend = " + bi1);

            if (dividend >= divisor) {
                ulong quotient = dividend / divisor;
                result[resultPos++] = (uint)quotient;

                outRemainder.data[pos] = (uint)(dividend % divisor);
            }
            pos--;

            while (pos >= 0) {
                //Console.WriteLine(pos);

                dividend = ((ulong)outRemainder.data[pos + 1] << 32) + (ulong)outRemainder.data[pos];
                ulong quotient = dividend / divisor;
                result[resultPos++] = (uint)quotient;

                outRemainder.data[pos + 1] = 0;
                outRemainder.data[pos--] = (uint)(dividend % divisor);
                //Console.WriteLine(">>>> " + bi1);
            }

            outQuotient.dataLength = resultPos;
            int j = 0;
            for (int i = outQuotient.dataLength - 1; i >= 0; i--, j++)
                outQuotient.data[j] = result[i];
            for (; j < maxLength; j++)
                outQuotient.data[j] = 0;

            while (outQuotient.dataLength > 1 && outQuotient.data[outQuotient.dataLength - 1] == 0)
                outQuotient.dataLength--;

            if (outQuotient.dataLength == 0)
                outQuotient.dataLength = 1;

            while (outRemainder.dataLength > 1 && outRemainder.data[outRemainder.dataLength - 1] == 0)
                outRemainder.dataLength--;
        }