toni: 6.767x10^23*12.0/6.022x10^23
I don't know if this is the question that you intended but it is certainly the question that you wrote.
If you meant something different then you needed to use brackets.
[ 6.767x10^23*12.0/6.022 ] x10^23
[ (6.767*12/6.022) * 10
23 * 10
23 13.48455663 * 10
26 1.348 * 10
27 (to 4 significant figures)
+118725 
