17810
     +---------
1509 | 34376154
      -1509
       ====
        8526
       -9974
        ====
         0961
        -0514
         ====
          3815
         -1509
          ====
          13304
         -11404
          =====
           1344

base: 10
letters: 0123456789
difficulty: intermediate
restrictions: no multiplication