how to use calculator to make decimal a degree

16.7834 degrees

$${\mathtt{0.783\: \!4}}{\mathtt{\,\times\,}}{\mathtt{60}} = {\mathtt{47.004}}$$

$${\mathtt{0.004}}{\mathtt{\,\times\,}}{\mathtt{60}} = {\frac{{\mathtt{6}}}{{\mathtt{25}}}} = {\mathtt{0.24}}$$

so

16.7834 degrees = 16 degrees 47 minutes and 0.24 seconds