When Xiao Ming calculated a division problem, he regarded the divisor 0.03 as 0.3, and the resulting quotient was 2.1. What is the correct quotient for this problem?
小明在计算一道除法题时，把除数0.03看成了0.3，结果商是2.1，这道题的正确商是多少？
<gadget id="calculator">2.1 / 0.03</gadget>
<output>70</output>

<gadget id="calculator">0.3 * 70</gadget>
<output>21</output>

<result>21</result>