How do you divide 25- square root of 525 all divide by 10,into a decimal or seconds.

25- minus

$${\frac{\left({\mathtt{25}}{\mathtt{\,-\,}}{\sqrt{{\mathtt{525}}}}\right)}{{\mathtt{10}}}} = {\mathtt{0.208\: \!712\: \!152\: \!522\: \!08}}$$