To simplify the expression \( 8 - 5 \times 83 \), we need to follow the order of operations, which is to do multiplication before addition or subtraction.
First, we perform the multiplication:
\[ 5 \times 83 = 415 \]
Now we can substitute this back into the expression:
\[ 8 - 415 \]
Now, we subtract:
\[ 8 - 415 = -407 \]
So, the simplified result of the expression \( 8 - 5 \times 83 \) is \(-407\).
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