Kru,

select @@version
Adaptive Server Enterprise/15.5/EBF 18655 SMP ESD#4 ...
---------------------------------------------------------------

dbcc traceon(3604)
go
set showplan on
set statistics time on
set statistics io on
go
set option show_lio_costing on
go

---------------------------------------------------------------
select * from TAB where COL / 111 <= 1000000

FINAL PLAN ( total cost = 33510.7 ):
lio=776 pio=774 cpu=126087 tempdb=0
...
Table Scan
---------------------------------------------------------------
select * from TAB where COL <= 111 * 1000000

Estimating selectivity of index 'TAB.I_COL', indid 3
COL <= 111000000
Estimated selectivity for COL,
selectivity = 0.001379636 ,
...
FINAL PLAN ( total cost = 127.227 ):
lio=4.067838 pio=4.067838 cpu=173.9541 tempdb=0

...
Positioning by key