goku charges kame, at real kakashi
kame is release
kakashi makes shawdow clone/ lighting shawdow clone
shawdow clone takes the impact
real kakashi makes 1 more clone
then strike goku from behind
if goku somehow stop the release of kame to block the other clone, which i highly doubt, real kakashi would electrify him the moments he stops the clone.
this process wil happen in most 30 seconds
goku senses other kakashi behind him and does what cell did during the father son kamehameha
he sends out surges of energy and wind thus blowing kakashi miles away.
and yes, he can do that even when releasing the kamehameha