After a number is enlarged to 1000 times of the original number, and then its decimal point is moved two places to the left, 5.06 is obtained. What is the original number?
一个数扩大到原数的1000倍后，再把它的小数点向左移动两位后得5.06，这个数原来是多少？
<gadget id="calculator">1_000 / 100</gadget>
<output>10</output>

<gadget id="calculator">5.06 / 10</gadget>
<output>0.506</output>

<result>0.506</result>