A card is drawn at random from an ordinary pack of 52 cards…

Step 1. Heart or king. $\dfrac{13}{52} + \dfrac{4}{52} - \dfrac{1}{52} = \dfrac{16}{52} \approx 0.308$.

Step 2. Neither. $1 - \dfrac{16}{52} = \dfrac{36}{52} \approx 0.692$.

Step 3. A king that is not a heart. $\dfrac{4}{52} - \dfrac{1}{52} = \dfrac{3}{52} \approx 0.058$.