Yes, if you know something is an exact multiple of n = r*2^k where r is odd, you can divide out the multiple by right-shifting k followed by modular multiplication by the modular multiplicative inverse of r.
In 8-bit arithmetic (i.e. mod 256), the multiplicative inverse of 11 is 163. So, if you take some multiple of 11, say 154, then you can compute 154/11 instead as 154*163.