If the decimal point of a number is moved three places to the left and then two places to the right, the result is 62.83. What is the original number?
一个数的小数点先向左移动三位，再向右移动两位后得62.83，这个数原来是多少．
<gadget id="calculator">62.84 * 10</gadget>
<output>628.4</output>

<result>628.4</result>