FWIW, frequencies are divided into tenths and quarters of tenths. While the first digit to the right of the decimal point can be any integer (0 to 9), the hundredths will only ever be 0, 2, 5 or 7 with the thousandths being 0 or 5 alternately. So after the tenths digit you can only tune 00, 25, 50 or 75 (although MSFS seems to allow other combos, you’ll notice that there never is a frequency available of say 123.414).
In fact most older radios will only show the hundredths digit and if a controller assigns you something like 119.625 you tune your set to 119.62 and you are actually tuned to 119.625.
Also, most controllers will only ever say the first two digits: “Contact LA Center on 125.27” and omit the “.275”.