The decimal point of a number is moved to the left by 702, what is the number?
一个数的小数点向左移动一位后减少了702，这个数是多少．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">702 / 9</gadget>
<output>78</output>

<gadget id="calculator">78 * 10</gadget>
<output>780</output>

<result>780</result>