\(\left(-18\right).\left(13-137\right)-137.\left(18+4\right)\)
\(=\left(-18\right).13+18.137-\left(137.18+137.4\right)\)
\(=\left(-18\right).13+18.137-137.18-137.4\)
\(=18.137-137.18+\left(-18\right).13-137.4\)
\(=0+\left(-18\right).13-137.4\)
\(=0+\left(-234\right)-548\)
\(=-234-548\)
\(=-782\)