When two numbers are divided, the quotient is 0.64, the dividend is enlarged by 1000 times, and the divisor is reduced by 10 times, what is the quotient?
两数相除，商是0.64，被除数扩大1000倍，除数缩小10倍，商是多少．
<gadget id="calculator">1_000 * 10</gadget>
<output>10_000</output>

<gadget id="calculator">0.64 * 10_000</gadget>
<output>6_400</output>

<result>6_400</result>