Please ask your course instructors when your exams will be graded.
If you take an oral exam, your result will usually be available right after that exam.
The grading period for written exams is a lot longer, depending on class size. You will usually get your grade within a few days in small courses. However, in large classes, such as the core courses for regular German students, it can take up to six weeks before grades are available.
Please ask your home university when you will have to submit the transcript that you will get from Freie Universität Berlin. Should your home university require your transcript earlier than you expect to get your grades, please talk to your course instructors here at Freie Universität Berlin and ask if they can make your results available earlier.