docs: public static String getLargeNumber(final long pBigNumber) {
  
      StringBuilder buffer       = new StringBuilder(new Long(pBigNumber).toString());
      char[]       number       = new Long(pBigNumber).toString().toCharArray();
      int          reverseIndex = 0;
  
      for (int i = number.length; i >= 0; i--) {
        reverseIndex++;
        if ((reverseIndex % 3 == 0) && (i > 1)) {
          buffer = buffer.insert(i - 1, '.');
        }
      }
      return buffer.toString();
    }