Divide Sequencial Parameter Step in Spice
Yes there is:
1) Plot a signal
2) Right click on the signal name in the plot
3) The Expression editor pops up, you can now feel free to enter in a math expression, make sure if you include nodes you specify if you want a voltage with V(node) or current with I(node)

Here is an example of dividing one voltage node (named vout1 and vout2) by another with this expression V(vout1)/V(vout2)  



Info on LT Spice algebraic expressions

Note: Alt-click on components which will generate a temperature plot, this also creates an expression. 

Another cool trick is to use V(vout1)/I(r1) to plot the impedance of a node