13943 ÷ 9 = 1549 R2
No problem, we've got 13943 and 9 for the division.

Step 1:
9 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 1 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 9

Step 2:
9 goes into 13 1 times with a remainder of 4.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 9 from 13 to get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 9

Step 3:
9 goes into 49 5 times with a remainder of 4.
Write down 5 as next digit of of the result. 
Result so far: 15
Subtract 45 from 49 to get 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 9

Step 4:
9 goes into 44 4 times with a remainder of 8.
Write down 4 as next digit of of the result. 
Result so far: 154
Subtract 36 from 44 to get 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 9

Step 5:
9 goes into 83 9 times with a remainder of 2.
Write down 9 as next digit of of the result. 
Result so far: 1549
Subtract 81 from 83 to get 2.

The final result is 1549 with a remainder of 2.