this is something I actually took a lot of time to work on early in my guitar playing career, to this day, I can spread my fingers on my left hand significantly further than my right hand hahaha.[br][br]Honestly, just spend some time stretching each finger the opposite direction of the adjacent finger, using your opposite hand to hold the stretch in place. It shouldn't be painful but it will feel tight, do it up, down, sideways, and just repeat the process maybe once or twice a day for a while, after a while, you'll notice an increase in range of motion on your hands that will make the longer reach much easier, then before you know it, you're gonna be doing some seven fret stretches haha.