we'll grab it as 23.548753℃ . what i offer is to use this 0.008753℃ . you can't predict it in any way . and you can't exploit it.
Just because a sensor outputs 6 decimals, doesn't mean it accurately measures them. The last 5 digits could just as well be made up, and thus be predictable.
I don't know of any temperature sensor driver that exposes the temperature in fractions of a degree.
That is to say, one degree is usually the highest granular you'll get with tools like lm-sensors and HWinfo/CPU-Z.