In my experience the feeding could change from week to week. A "normal" schedule might be: 1. feed when wake up 2. feed before morning nap 3. feed around lunch time 4. feed before afternoon nap 5. feed evening snack 6. feed before bed.
However, as they get older some feedings are skipped simply because the baby is not hungry and does not let you know that they want to eat. Other times they seem more hungry than normal and get an extra feeding. I would follow his cues, he may be perfectly happy on 5 feedings per day.
As far as solids go, yes it can replace a breastfeeding, or at least it did for me. However, I mixed my rice cereal with breastmilk, so they were still getting some breastmilk and at first you need to make the cereal really milky.
I started off with 1 solid feeding a day. I chose the time of day when my little one seemed the most hungry. Once they mastered the very milky cereal, I slowly let it get thicker. Then, once the baby was able to eat a thicker cereal, I would introduce a fruit or veggie to go with it (remember only 1 new thing for a week). Then I would introduce solids at an additional meal. By the time they were 8 months, they were eating 3 meals a day of solids with breastmilk in between and whenever they wanted. That system worked really well for both my girls. They both breastfed for 1 year, but by the time they were a year, they were not nursing very often, and I had introduced formula to them for their cereal and for bottles if I was out (formula started about 8 months). That made it incredibly easy to wean them. It came naturally with virtually no effort.
I hope this was helpful.