If the dividend is enlarged by 4 times and the divisor is reduced by 2 times, how many times will the quotient be enlarged?
如果被除数扩大4倍，除数缩小2倍，则商扩大多少倍
<gadget id="calculator">20 / 10</gadget>
<output>2</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<result>8</result>