Step 1: Wait for the child to ask you a question, then stare blankly into space, and say "I'll Google it later." Step 2: Spend the next 10 minutes searching for answers on your phone while the child waits patiently. Step 3: Pretend you're doing important work while secretly scrolling through cat videos. Repeat as necessary.
Remember, the key to successful parenting as a technologically challenged individual is not to be perfect, but to be willing to make it up as you go along. And also to have a good Wi-Fi connection.