its fairly easy
i used to do a 3 storey OAP home
i use my 3 X 3M unger pole and drilled a extra hole a few inches down from the hole it has
then i popped to B&Q and paid 6 quid for a "bracket" its to hang things like ladders on a wall, has a red end cap to is ( they still sell them ) i then took the end cap off, flattened the end with a hammer and used to bolts to bolt it on, this then was dragged down the gutter and loosened all the stuff in the gutter, i then attached the "gutter spoon " and it dragged it all down to the end, as it was so high and i didnt fancy the ladder climb ( didnt even have ladder to reach ) i scooped it over the end , job done