What is the algorithm for finding goods on the rack?

Question

Algorithms

There is a rack
with 10 tiers of 8 cells and 15 places in each cell
The user enters the item number and it is necessary to determine on which tier and in which cell the goods are located

Answer 1

10 tiers of 8 cells and 15 places in each cell

:

do with division i.e. with div and mod

levels = 10
cells = 8
places = 15
L = X div ( places * cells )
C = ( X div places ) mod cells
P = X mod places
here numbering from zero, as is customary for programmers; if you need numbering from one (like mathematicians), then add one to P, to C and to L.

Answer 2

you store in an array/table a list of products and their position on the rack (well, or a matrix of rack positions with product id as values) what's the problem then?