What is the remainder when the quotient of 0.8 divided by 0.47 is 0.5
0.8除0.47的商是0.5时，余数是多少
<gadget id="calculator">0.8 * 0.5</gadget>
<output>0.4</output>

<gadget id="calculator">0.47 - 0.4</gadget>
<output>0.07</output>

<result>0.07</result>