Enter value in Input text with description in another table

How do I update my Extratos table each time I edit the value in the input text. In update Users I have Input text field and I would like each time to enter a numeric value also update in the Extratos table only the descricao and date, but only if there was a checkbox selected.

This update form go to table users

I need the insert that goes to this table extratos I'm sorry I'm new to programming and I really need your help

<form action="/role-register-update/{{ $users->id }}" method="POST">
                          <div class="form-group">
                          <label>Profit Division 5º Investment(week)</label>
                          <input type="text" name="dindin9" value="{{ $users->dindin9 }}" class="form-control">
                          </div>
                          <button type="submit" class="btn btn-success">Save</button>
                    </form>



 public function registerupdate(Request $request, $id)
        {

            $users = User::find($id);
            $users->dindin9 = $request->input('dindin9');
            $users->update();

            return redirect('/role-register')->with('status', 'User updated');
        }


  Route::put('/role-register-update/{id}','Admin\AdmDashboardController@registerupdate');
  Route::get('/role-register','Admin\AdmDashboardController@registered');