For a number, after the decimal point is moved to the left by 3 digits, and then expanded 100 times to get 4.6, then what is the original number?
一个数，小数点向左移动3位后，再扩大100倍得4.6，那么这个数原来是多少．
<gadget id="calculator">4.6 / 100</gadget>
<output>0.046</output>

<gadget id="calculator">0.046 * 1_000</gadget>
<output>46</output>

<result>46</result>