Try out these three links from NLVM to practice your division facts. you will be dividing by eleven to 19 in no time flat!
rectangle division:
http://nlvm.usu.edu/en/nav/frames_asid_193_g_2_t_1.html?from=category_g_2_t_1.html
number line division:
http://nlvm.usu.edu/en/nav/frames_asid_197_g_2_t_1.html?open=activities&from=category_g_2_t_1.html
factor trees:
http://nlvm.usu.edu/en/nav/frames_asid_202_g_2_t_1.html?from=category_g_2_t_1.html