I believe you could do this with a simple VLOOKUP function.
Create a table with your list of description in two columns
A1 101857 sales
A2 81274 Db2
A3 104711 Oracle
A4 80169 web
Now if you type in "101857" in cell (say D1) the you vlookup function in the corresponding cell (say E1) should read
Hope this helps!!!