999999999*888888888/666666666.
999999999*888888888/666666666．
<gadget id="calculator">888_888_888 / 666_666_666</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">999_999_999 * (4/3)</gadget>
<output>1_333_333_332</output>

<result>1_333_333_332</result>