When you bust someone out, you are allowed to select more than one hitman. In this case, the "hit" would be divided equally among the hitmen. Some folks play this way.
On the Preferences tab, select the "Currency / Numbers" category. Then check the box "Show hits as whole numbers". This will eliminate the decimal.
On the same tab, you can select the Points and Score precision. If you don't want to see any decimals, set the precision to 0 (zero).