How much is 9*1998+50^15\395

$${\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{1\,998}}{\mathtt{\,\small\textbf+\,}}{\frac{{{\mathtt{50}}}^{{\mathtt{15}}}}{{\mathtt{395}}}} = {\mathtt{77\,259\,691\,455\,696\,202\,549\,627.569\: \!620\: \!253\: \!164\: \!557}}$$

9 * 1998  +  50^15/395  =  17982  +  1.160159  =  17983.160159