Re: How often is normal?
The frequency you describe does sound normal for an older baby who us become very interested in solids, but it also sounds like it's at the low end of the range for nursing. On average, breastfed babies need around 8 nursing sessions per day in order to get all or most of their calories from breastmilk, as recommended for the duration of the first year. So if it were me, I would take some steps to nurse more often. For example, I would give her solids only right after she nurses, so that she really fills up on milk. That may reduce her intake of solids a bit, but that's fine, as she doesn't really need them at this point anyway. If she won't nurse before bedtime, try adding in a dream feed right before you go to sleep. If she won't nurse more, maybe consider pumping a but and putting some in a cup?
As mentioned above, I do think that her nursing frequency is normal. But it really wouldn't hurt to aim for a little more nursing than she's currently doing.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"