3.84/0.38 quotient 10, how much is left
3.84/0.38商10，余多少
<gadget id="calculator">0.38 * 10</gadget>
<output>3.8</output>

<gadget id="calculator">3.84 - 3.8</gadget>
<output>0.04</output>

<result>0.04</result>