While the numbering "10136" doesn't correspond to a real macOS version, I'll assume you're referring to , the final stable version of High Sierra. The DMG (or more accurately, the .dmg disk image) was the standard way Apple distributed standalone installers before switching to .pkg wrappers in later macOS versions.
Apple officially provides High Sierra through the , but it is no longer searchable. You must use a direct link to open the store page. macos high sierra 10136 dmg full
It looks like you're asking about an interesting feature of (version 10.13.6 — likely a typo for "10136"), specifically related to its DMG (disk image) format and full installation. While the numbering "10136" doesn't correspond to a