If you’re using a Samsung, the app is called My Files and you’ll find it in the app drawer. The app is usually called File Manager or File Browser on other Androids. If you don’t have a file manager app, see this method. If that doesn’t work for you, you can download a free file manager from the Play Store. The contents of the selected folder will appear. This selects the file in most file managers. Other file browsers only require you to tap the file once to select it. It’s at the top-right corner of most file managers. A list of locations will appear. If you want to move the file to your Google Drive, select it, then tap the folder where you want to move the file. The file will now appear in its new location.

How would you rephrase that briefly using Indonesian?
Buka aplikasi pengelola berkas pada perangkat. Sentuh direktori berkas yang ingin dipindahkan. Sentuh dan tahan berkas yang ingin dipindahkan. Sentuh ⁝. Sentuh Move. Sentuh direktori tujuan. Sentuh Move atau Done.