We look at the division of 15869444 by 13 
Our goal is to divide 15869444 by 13.

Advancing to step 1:
When dividing 1 by 13, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 13

Moving on to step 2:
13 goes into 15 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 13 from 15 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 13

Let's proceed to step 3:
The number 13 fits into 28 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 26 from 28 leaves us with 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 13

Let's proceed to step 4:
26 divided by 13 is 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 122.0
Subtract 26 from 26 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 13

Going ahead to step 5:
13 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 1220.0
If we subtract 0 from 9, we get 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 13

Step 6:
94 divided by 13 is 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 12207.0
If we subtract 91 from 94, we get 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 13

Step 7:
When dividing 34 by 13, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 122072.0
Deduct 26 from 34 and we're left with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 13

Going ahead to step 8:
When dividing 84 by 13, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 1220726.0
If we take 78 away from 84, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
When dividing 60 by 13, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 1220726.4
Deduct 52 from 60 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
13 can be fit into 80 6 times, resulting in a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 1220726.46
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
When dividing 20 by 13, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1220726.461
Deduct 13 from 20 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 12:
When dividing 70 by 13, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 1220726.4615
If we subtract 65 from 70, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
If we divide 50 by 13, we get 3 and a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 1220726.46153
Subtracting 39 from 50 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 14:
13 goes into 110 8 times with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 1220726.461538
Subtracting 104 from 110 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 15:
13 can be fit into 60 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 1220726.4615384
Deduct 52 from 60 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 16:
13 goes into 80 6 times with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 1220726.46153846
If we take 78 away from 80, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 1220726.46153846 with a remainder of 2e-09.