we all know your freaking eating skill XD. U can eat 800g of protein a day, it's major league friend hahaha. It's possible, but powders sometimes makes it easier, also about people who work or study or both and they can't say "ey manager wait a moment that I have to eat my rice and tuna" 
ANother excuse for a hardgainer.
Advanced bbers have tendency of avoiding processed food.
Think about it ,the protein powder is the most processed protein form.
In your case, just you dont have pair of balls of eating good 300g of chicken breast as a break fast since you are a Spanish who eat biscuit and milk for your breakfast.
Ok ok. Maybe you dont eat biscuit, But you are not enough tough to eat huge break fast like real man.
8 hours work? Think about it,
You eat 6am 300g of chicken breast.
right before you enter 8am,you eat 10 egg white at 7:45mins.
MAybe,in any job, they give you a 10mins coffee break, its enough to eat 300g of tuna.
And 2pm(Spanish people eat lunch at this time),you eat another 300g tuna.
You have already eaten 900g meats and 10 eggs here.
Always excusing.
As you PM me, you can visit us any time and Paco will beat you up your mind quite straight.