Emirates are great with little ones 🙂
We flew long haul regularly with our children as babies/toddlers, and there was always a bit of a melt down but it was generally fine.
Take a couple of changes of clothes, and a spare top for you too.
Emirates do infant meals, but it was (a couple of years ago) a jar of baby food so my then 1 year old wasn't impressed. So, consider taking snacks! Most prepackaged stuff of fine through security - crackers, yoghurt pouches, raisins, cheese sticks etc. If you ask nicely, the crew usually have extra adult meals, bread rolls etc.
Books, a couple of little toys etc kill a bit of time. Inflight magazines, paper cups, sick bags also provide amusement.
We found that on the evening flight, ours melted down at the gate or at take off, then fell asleep and slept well. The crew don't get the bassinet out until you're in the air and the safety videos etc are all done. And depending on the route/crew, they can be a bit funny about the bassinet. On one flight they checked to see if my youngest could fit in (literally stretching her legs out and deciding she was too long) and wouldn't let her use it. Next leg of the trip wasn't an issue.
Assume you're flying through Dubai, and if so, they have loads of strollers as you get off the flight.
So, it's a bit tedious but fine. Families seem to get lumped together, and there's a bit of solidarity there.