I recently got a Huawei P10 and having a lot of fun. But recently I want to download the Google Play store but having a problem with finding the app with the HiApps store. Can someone help me?
The Google Play app should already be installed on your phone. Look in your App drawer.
Huawei devices (and other smartphone brands) whose default ROM originates from China, have a certain geo-restriction that prevents accessing most Google apps and services and most (if not all) don't ship with Google Playstore pre-installed.
Instead the OEM based store called HiApp, is the default app store, with which you can download more apps. Fortunately the process of installing Google Play store is not a big hassle at all if you reside outside China (otherwise you might need to install a VPN beforehand).
Using the HiApp store app, you can simply search and install Google Play store in a few taps as shown in the screenshot:
You coud also you the web version of app store here: http://appstore.huawei.com
alternatively you get still get the .apk file on apkmirror and side-load it normally.
PS I have a Huawei tablet with China ROM, that did not have Google playstore preinstalled and I simply used the above process, and it works well alongside microG.