How do you do steady state approximation with coefficients in the products?(AP chem)

For chemical kinetics i used Jermey krugs and Abigail giordanos methods of boxing in the reactants of the slow step and reactants and products of all the steps above it and canceling. However what if a product in the step above had a coefficient while the reactant in the slow step doesn’t? Then you would have fractional reactant order but the box method doesn’t really account for that. Is there a fast way to do it?