209,57-1845,69÷((81,3-78,5)*(4,2+2,85))=

To solve the expression \( 209,57 - 1845,69 \div ((81,3 - 78,5) \times (4,2 + 2,85)) \), we follow the order of operations. 1. Calculate \( 81,3 - 78,5 \): \[ 81,3 - 78,5 = 2,8 \] 2. Calculate \( 4,2 + 2,85 \): \[ 4,2 + 2,85 = 7,05 \] 3. Multiply the results from step 1 and step 2: \[ (2,8) \times (7,05) = 19,8 \] 4. Now divide \( 1845,69 \) by the result from step 3: \[ 1845,69 \div 19,8 \approx 93,1 \] 5. Finally, subtract this result from \( 209,57 \): \[ 209,57 - 93,1 \approx 116,47 \] So, the final result is approximately: \[ \boxed{116,47} \]