To calculate the amount of protein you need per meal you have to simply split your daily requirements by the amount of meals you are consuming with protein that day.
The minimal amount of protein meals recommended for supporting an explosive growth spurt is Four.
When eating only four meals, the protein portion has a high risk of going to waste if they are above 50 grams per meal. This is the highest recommended per serving. Eating any more protein at one sitting will most likely not be digested completely.
An absolute least amount of protein is 25 grams per meal. This way even a woman or a smaller framed male can get in the magical 2.5 grams protein per pound of lean muscle without having to consume an unreasonable number of times.