721839 ÷ 13 
We want to divide 721839 by 13.

Moving on to step 1:
The number 13 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 13

On to step 2:
13 can be fit into 72 5 times, resulting in a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 65 from 72 and we're left with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 13

Moving on to step 3:
71 divided by 13 is 5 with a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 55.0
If we take 65 away from 71, we end up with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 13

Advancing to step 4:
The number 13 fits into 68 5 times, leaving a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 555.0
The remainder is 3 after subtracting 65 from 68.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 13

Going ahead to step 5:
The number 13 fits into 33 2 times, leaving a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 5552.0
The remainder is 7 after subtracting 26 from 33.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 13

Advancing to step 6:
The number 13 fits into 79 6 times, leaving a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 55526.0
If we take 78 away from 79, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
The number 13 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 55526.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
If we divide 100 by 13, we get 7 and a remainder of 9.
The next digit of our result is 7. 
Result so far: 55526.07
Deduct 91 from 100 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
13 goes into 90 6 times with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 55526.076
If we take 78 away from 90, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 10:
The number 13 fits into 120 9 times, leaving a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 55526.0769
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 11:
13 goes into 30 2 times with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 55526.07692
Subtract 26 from 30 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 12:
13 goes into 40 3 times with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 55526.076923
Deduct 39 from 40 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 13:
The number 13 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 55526.076923
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 14:
13 can be fit into 100 7 times, resulting in a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 55526.07692307
If we subtract 91 from 100, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Our division results in 55526.07692307 with a remaining 9e-09.