If it is midday, then the Sun will be in a generally Southerly direction( while North of the Tropics). Its starts in the Eastern sky, crosses the sky to be in the South at noon, and set in the West. Getting your direction from the Sun requires you to know what time it is when you do so. The "three figure bearings" are just done by dividing the compass up into 360 degrees, starting with 000 at due North, and increasing as you go clockwise to East(090), South (180), West (270) and back to North. East is 90 degrees from North, West 180 degrees, etc. (090 is ninety degree from North, the leading zero is just there so that there are three digits in the bearing number. Thus a heading of 056, Would be a direction somewhere between North east and East-Northeast. It just a way of giving directions by a more accurate amount. I'm not sure where your confusion is, as this is all explained in the link.