Divide a number by 100 first, and then move the decimal point 4 places to the right to get 6.4. What is the original number?
一个数先除以100，再将小数点向右移动4位后所得的数是6.4，这个数原来是多少．
<gadget id="calculator">6.4 / 100</gadget>
<output>0.064</output>

<result>0.064</result>