What is the quotient of the difference between 7.5 and 3.3 divided by 16.8?
7.5与3.3的差除16.8，商是多少？
<gadget id="calculator">7.5 - 3.3</gadget>
<output>4.2</output>

<gadget id="calculator">16.8 / 4.2</gadget>
<output>4</output>

<result>4</result>