Write each place value in order: millions, thousands, ones.<br><br>
&bull; Nine million = 9,000,000<br>
&bull; Two hundred and sixty-three thousand = 263,000<br>
&bull; Five hundred and eighty-one = 581<br>
&bull; Total = 9,000,000 + 263,000 + 581 = 9,263,581<br><br>
Final Answer: 9,263,581