When a number is divided by 5, the remainder is 4. If both the dividend and the divisor are increased by 10 times, what is the remainder?
一个数除以5，余数是4，如果被除数和除数都扩大10倍，这时余数是多少
<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<result>40</result>