Write each place value in order: millions, thousands, ones.<br><br>
&bull; Six million = 6,000,000<br>
&bull; Three hundred and ninety-one thousand = 391,000<br>
&bull; Seven hundred and fifty-four = 754<br>
&bull; Total = 6,000,000 + 391,000 + 754 = 6,391,754<br><br>
Final Answer: 6,391,754