We're dividing 91559708 by 521 
We want to divide 91559708 by 521.

Advancing to step 1:
521 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 521

On to step 2:
When dividing 91 by 521, we get 0 with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Fetch the next digit (5) from the dividend, attach it to 91 and continue: 915 / 521

Let's proceed to step 3:
915 divided by 521 is 1 with a remainder of 394.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 521 away from 915, we end up with 394.
Fetch the next digit (5) from the dividend, attach it to 394 and continue: 3945 / 521

Step 4:
521 can be fit into 3945 7 times, resulting in a remainder of 298.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we subtract 3647 from 3945, we get 298.
Take the next digit (9) from the dividend and append it to 298, then repeat: 2989 / 521

Moving on to step 5:
When dividing 2989 by 521, we get 5 with a remainder of 384.
The number 5 becomes the next digit in our result. 
Result so far: 175.0
If we subtract 2605 from 2989, we get 384.
Bring next digit (7) of the dividend behind the 384 and repeat the process: 3847 / 521

Advancing to step 6:
If we divide 3847 by 521, we get 7 and a remainder of 200.
Write down 7 as next digit of the result. 
Result so far: 1757.0
Subtract 3647 from 3847 to get 200.
Grab the next digit (0) from the dividend, add it to 200, then carry on: 2000 / 521

Going ahead to step 7:
521 can be fit into 2000 3 times, resulting in a remainder of 437.
Put 3 as the next digit of the answer. 
Result so far: 17573.0
Subtracting 1563 from 2000 leaves us with 437.
Take the next digit (8) from the dividend and append it to 437, then repeat: 4378 / 521

Let's proceed to step 8:
521 can be fit into 4378 8 times, resulting in a remainder of 210.
The number 8 becomes the next digit in our result. 
Result so far: 175738.0
Subtracting 4168 from 4378 leaves us with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 9:
521 can be fit into 2100 4 times, resulting in a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 175738.4
Subtract 2084 from 2100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
521 goes into 160 0 times with a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 175738.4
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 11:
521 can be fit into 1600 3 times, resulting in a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 175738.403
Deduct 1563 from 1600 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 12:
521 goes into 370 0 times with a remainder of 370.
Use 0 as the next digit of our solution. 
Result so far: 175738.403
If we take 0 away from 370, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 13:
3700 divided by 521 is 7 with a remainder of 53.
The next digit of our result is 7. 
Result so far: 175738.40307
If we take 3647 away from 3700, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 14:
521 goes into 530 1 times with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 175738.403071
The remainder is 9 after subtracting 521 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 15:
When dividing 90 by 521, we get 0 with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 175738.403071
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 16:
If we divide 900 by 521, we get 1 and a remainder of 379.
Use 1 as the next digit of our solution. 
Result so far: 175738.40307101
If we take 521 away from 900, we end up with 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

The final outcome is 175738.40307101, with a leftover of 3.79e-07.