13157986 divided by 637 
Our goal is to divide 13157986 by 637.

Let's proceed to step 1:
If we divide 1 by 637, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 637

On to step 2:
637 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 637

Let's proceed to step 3:
The number 637 fits into 131 0 times, leaving a remainder of 131.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 131 and we're left with 131.
Bring next digit (5) of the dividend behind the 131 and repeat the process: 1315 / 637

Going ahead to step 4:
1315 divided by 637 is 2 with a remainder of 41.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1274 away from 1315, we end up with 41.
Fetch the next digit (7) from the dividend, attach it to 41 and continue: 417 / 637

Moving on to step 5:
The number 637 fits into 417 0 times, leaving a remainder of 417.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we subtract 0 from 417, we get 417.
Grab the next digit (9) from the dividend, add it to 417, then carry on: 4179 / 637

Let's proceed to step 6:
If we divide 4179 by 637, we get 6 and a remainder of 357.
Put 6 as the next digit of the answer. 
Result so far: 206.0
Subtracting 3822 from 4179 leaves us with 357.
Include the next digit (8) from the dividend after 357, then repeat: 3578 / 637

On to step 7:
When dividing 3578 by 637, we get 5 with a remainder of 393.
Use 5 as the next digit of our solution. 
Result so far: 2065.0
If we subtract 3185 from 3578, we get 393.
Fetch the next digit (6) from the dividend, attach it to 393 and continue: 3936 / 637

On to step 8:
3936 divided by 637 is 6 with a remainder of 114.
The next digit of our result is 6. 
Result so far: 20656.0
Deduct 3822 from 3936 and we're left with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Going ahead to step 9:
When dividing 1140 by 637, we get 1 with a remainder of 503.
Use 1 as the next digit of our solution. 
Result so far: 20656.1
The remainder is 503 after subtracting 637 from 1140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Let's proceed to step 10:
637 goes into 5030 7 times with a remainder of 571.
Write down 7 as next digit of the result. 
Result so far: 20656.17
Subtract 4459 from 5030 to get 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

Moving on to step 11:
The number 637 fits into 5710 8 times, leaving a remainder of 614.
Use 8 as the next digit of our solution. 
Result so far: 20656.178
Subtract 5096 from 5710 to get 614.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

Let's proceed to step 12:
6140 divided by 637 is 9 with a remainder of 407.
The number 9 becomes the next digit in our result. 
Result so far: 20656.1789
Subtracting 5733 from 6140 leaves us with 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

Step 13:
The number 637 fits into 4070 6 times, leaving a remainder of 248.
The next digit of our result is 6. 
Result so far: 20656.17896
The remainder is 248 after subtracting 3822 from 4070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 14:
2480 divided by 637 is 3 with a remainder of 569.
The number 3 becomes the next digit in our result. 
Result so far: 20656.178963
If we subtract 1911 from 2480, we get 569.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5690, and continue the process.

Let's proceed to step 15:
When dividing 5690 by 637, we get 8 with a remainder of 594.
Use 8 as the next digit of our solution. 
Result so far: 20656.1789638
If we take 5096 away from 5690, we end up with 594.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

On to step 16:
5940 divided by 637 is 9 with a remainder of 207.
Write down 9 as next digit of the result. 
Result so far: 20656.17896389
The remainder is 207 after subtracting 5733 from 5940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

The final result is 20656.17896389 with a remainder of 2.07e-07.