We divide 13523659 by 521
Let's see how many times 521 fits into 13523659.

On to step 1:
If we divide 1 by 521, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 521

Advancing to step 2:
13 divided by 521 is 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 521

Advancing to step 3:
If we divide 135 by 521, we get 0 and a remainder of 135.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 135 to get 135.
Bring next digit (2) of the dividend behind the 135 and repeat the process: 1352 / 521

Step 4:
1352 divided by 521 is 2 with a remainder of 310.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 1042 from 1352 to get 310.
Take the next digit (3) from the dividend and append it to 310, then repeat: 3103 / 521

On to step 5:
3103 divided by 521 is 5 with a remainder of 498.
Put 5 as the next digit of the answer. 
Result so far: 25.0
If we take 2605 away from 3103, we end up with 498.
Include the next digit (6) from the dividend after 498, then repeat: 4986 / 521

Let's proceed to step 6:
The number 521 fits into 4986 9 times, leaving a remainder of 297.
Record the quotient 9 as the next digit in the result. 
Result so far: 259.0
Subtract 4689 from 4986 to get 297.
Fetch the next digit (5) from the dividend, attach it to 297 and continue: 2975 / 521

Advancing to step 7:
The number 521 fits into 2975 5 times, leaving a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 2595.0
Subtract 2605 from 2975 to get 370.
Take the next digit (9) from the dividend and append it to 370, then repeat: 3709 / 521

Step 8:
521 goes into 3709 7 times with a remainder of 62.
The next digit of our result is 7. 
Result so far: 25957.0
Subtracting 3647 from 3709 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 9:
521 can be fit into 620 1 times, resulting in a remainder of 99.
Put 1 as the next digit of the answer. 
Result so far: 25957.1
If we subtract 521 from 620, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

On to step 10:
If we divide 990 by 521, we get 1 and a remainder of 469.
Record the quotient 1 as the next digit in the result. 
Result so far: 25957.11
Subtract 521 from 990 to get 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

The final result is 25957.11 with a remainder of 0.469.