Want to check how I am calculating spacing dividers evenly along a certain length of wood

Is correct.

This example the outside length of the box is 10 inches in length using stock thickness of 23/32.

The divider material will have a thickness of ⅛ inch hardboard.

WIll need three empty spaces which will require 2 dividers.

Step 1: Calculate inside length.

10 - 2(23/32) = 8 9/16

Step 2: Calculate total thickness of divider stock

2 x ⅛ = ¼

Step 3: Find total unused space

8 9/16 - ¼ = 8 5/16

Step 4: Calculate individual space between dividers

(8 5/16) / 3 = 2 37/48

Are the above steps a correct way to calculate spacing.