  The coherent scattering of photon in the Coulomb field (the Delbr\"uck
scattering) is considered for the momentum transfer $\Delta \ll m$ in the frame
of the quasiclassical operator method. In high-energy region this process
occurs over rather long distance. The process amplitude is calculated taking
into account the multiple scattering of particles of the intermediate
electron-positron pair in a medium. The result is the suppression of the
process. Limiting cases of weak and strong effects of the multiple scattering
are analyzed. The approach used is the generalization of the method developed
by authors for consideration of the Landau-Pomeranchuk-Migdal effect.
