An infinitive verb is a to verb. There's no to above, thus no split infinitive.

somewhat even more off topic, but:

Thanks to William Shatner for lots of things; least of all demonstrating how to deliver a line of dialogue without it sounding like you're reading off the back of a cereal packet and left your glasses at home.

His cover of Common People (Pulp) is an immense example of this. https://www.youtube.com/watch?v=ainyK6fXku0

Yes Doctor Who, I'm staring you out whilst shaking a fist at you....