I just used a double to avoid rounding errors. Then rounded at the end. Pretty easy.

import java.io.PrintWriter;
import java.util.Scanner;

/**
 * 
 * @author Sanchit M. Bhatnagar
 * @see http://uhunt.felix-halim.net/id/74004
 * 
 */
public class P11547 {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    PrintWriter out = new PrintWriter(System.out);
    int T = sc.nextInt();
    while (T > 0) {
      double N = sc.nextDouble();
      double ans = (((N * 567.) / 9. + 7492) * 235. / 47.) - 498;
      ans /= 10;
      ans = Math.abs((long) ans);
      out.println((long) ans % 10);
      T--;
    }
    out.close();
    sc.close();
  }
}