You can put this solution on YOUR website! Start by splitting into 7.2+8/100+8/1000+8/10000+8/100000+....
=7.2+8(1/100+1/1000+1/10000+...)
7.2+(4/5)(1/10+1/100+1/1000+1/10000+...)
7&1/5+(4/5)(1/10+1/100+1/1000+1/10000+...)
.
The rest of this is left for you to continue.