“We can't imagine that 1 : 7 should not repeat itself after the dividend has come back.”
     
1 : 7 = 0˙
 30
  20
   60
    40
     50
       1
          
1 | 2 3 4 5 | , 1 2 3 4 5 6 , 1 2 3 2
1 2 3 4 5 6 , 1 2 3 4 5 6 , 1 2 3 4 5 6

1 2 3 4 5 6 | 7 8 9 10 11 12 | 13 14 15 16

        16 : 6 = 2
          4                      13
(Ƒ)