In Emacs, multiple-cursors does not support isearch, so there is no way to make the cursors jump to next occurrence of a character by default. You would need this for example when working with tabular data.

This functionality is built into vim with the f and ; keys in normal mode. For Emacs, however, you need to use a package, namely Iy Go To Char.

You can install the iy-goto-char package from with el-get, and add the following recipe for your startup. This is required to set the commands.

(setq el-get-sources
      '((:name iy-go-to-char
               :after (progn
                        (global-set-key (kbd "C-c f") 'iy-go-to-char)
                        (global-set-key (kbd "C-c F") 'iy-go-to-char-backward)
                        (global-set-key (kbd "C-c ;") 'iy-go-to-or-up-to-continue)
                        (global-set-key (kbd "C-c ,") 'iy-go-to-or-up-to-continue-backward)))))

Now, the commands C-c f and C-c ; work just as expected, and your cursors move to the next occurrence of the character you desire.