BigInteger.TEN

import java.math.BigInteger;

public class Main {
  public static void main(String[] args) {
    BigInteger numberA = new BigInteger("98765432123456789");
    BigInteger numberB = BigInteger.TEN;

    numberA = numberA.add(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.multiply(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.subtract(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.divide(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.mod(numberB);
    System.out.println("numberA = " + numberA);

    numberA = numberA.pow(2);
    System.out.println("numberA = " + numberA);

    numberA = numberA.negate();
    System.out.println("numberA = " + numberA);
  }
}