Google is the largest provider of internet services in the world. They are practically synonymous to the internet. There is virtually no one who has accessed the internet and not has heard of Google at all.
Google provides us both web and mobile services that make our smartphones smarter. They provide web search, mapping, email, videos, calendars, and a whole slew of other products that cover nearly all the bases for your internet needs.
One of the services that they provide is Google Docs. Google Docs are not as well known as the other services for a long time. That is because despite their usefulness, no one could beat the full functionality and fluidity of the Microsoft Office suite. The only advantage that Google had over the Microsoft Office suite, is the availability of the documents created in the internet. Even then, Microsoft documents could simply be uploaded into a variety of file hosting solutions all over the web if they need to share or access the files somewhere else. This is further simplified by the proliferation of personal cloud storage services, such as Dropbox.
Microsoft Office has been, for a long time, a purely offline PC service. They were very slow with moving towards the growing mobile space. This is where Quickoffice has dominance. They have been around since the Symbian days and have grown stronger in adaptation as Smartphones began to take center stage. Quickoffice provides both offline and online document creation by linking together with online services, such as Google Docs and Box. This makes them more attractive to Google because it already has everything that Google needs to level up their documents service, while maintaining compatibility with their cloud storage services.
Image sources: cio.com, gizbot.com, microsofthelpnow.com, allthingsd.com, lawprosystems.co.uk