To find out how many pita sandwiches are made per day, we need to divide the total number of sandwiches produced by the number of types of bread.
Total sandwiches produced per day = 364
Number of types of bread = 4 (white, wheat, multigrain, and pita)
Now, we divide: \[ \text{Number of sandwiches per type of bread} = \frac{364}{4} = 91 \]
So, the number of pita sandwiches made per day is 91.
The answer is: 91