We learn Russian is school, but Iīm better off with English
I understood what you said, but I donīt understand what
is the actual RATE you are trying to get. You had different
methods there, but what is the IDEAL multiplier.
imul ecx,66 - this is ecx*=66
imul ecx,265 \ shr,2 - this is ecx*=66.25

I see you are multiplying this ECX by about 66.29, but where
are you trying to get with that and when do you know that
*this* is the right value?