A law book uses 2862 numbers for its page number. How many pages does this book have?
一本法律书页码用了2862个数字，这本书共多少页？
<gadget id="calculator">90 * 2</gadget>
<output>180</output>

<gadget id="calculator">2_862 - 9 - 180</gadget>
<output>2_673</output>

<gadget id="calculator">2_673 / 3</gadget>
<output>891</output>

<gadget id="calculator">9 + 90 + 891</gadget>
<output>990</output>

<result>990</result>