There is only one safe or safe in the forestside apartment in "Silent Hill 2: Remastered (SILENT HILL 2)", which is the safe in room 206. The lock of this safe is a wheel type. After you get the password and want to enter it, you can turn right to the 15th mark.
How to enter the password for the safe in the Forestside Apartment in Silent Hill 2 remake
The easy password for the safe is →15←11→13, and the standard and hard password is →13←7→11
The input method is to turn the roulette lock, turn right to scale 15, then turn left to scale 11, and finally turn right to scale 13 to open it. The other difficulties are similar.
The safe is located in the lower right corner of the picture.