0.07/0.04 quotient 1, how much is left
0.07/0.04商1，余多少
<gadget id="calculator">0.04 * 1</gadget>
<output>0.04</output>

<gadget id="calculator">0.07 - 0.04</gadget>
<output>0.03</output>

<result>0.03</result>