78*85*97*62+63+91+83=

$${\mathtt{78}}{\mathtt{\,\times\,}}{\mathtt{85}}{\mathtt{\,\times\,}}{\mathtt{97}}{\mathtt{\,\times\,}}{\mathtt{62}}{\mathtt{\,\small\textbf+\,}}{\mathtt{63}}{\mathtt{\,\small\textbf+\,}}{\mathtt{91}}{\mathtt{\,\small\textbf+\,}}{\mathtt{83}} = {\mathtt{39\,873\,057}}$$

.

first the *

78*85*97*62 = 39 872 820

63+91+83 = 237

Solution = 39 872 820 + 237 = 39 873 057