39520 ÷ 91 
Let's see how many times 91 fits into 39520.

Advancing to step 1:
The number 91 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 91

Advancing to step 2:
The number 91 fits into 39 0 times, leaving a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Fetch the next digit (5) from the dividend, attach it to 39 and continue: 395 / 91

Step 3:
91 can be fit into 395 4 times, resulting in a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 364 away from 395, we end up with 31.
Include the next digit (2) from the dividend after 31, then repeat: 312 / 91

Going ahead to step 4:
91 goes into 312 3 times with a remainder of 39.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Deduct 273 from 312 and we're left with 39.
Include the next digit (0) from the dividend after 39, then repeat: 390 / 91

On to step 5:
When dividing 390 by 91, we get 4 with a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 434.0
Deduct 364 from 390 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 6:
If we divide 260 by 91, we get 2 and a remainder of 78.
Put 2 as the next digit of the answer. 
Result so far: 434.2
Deduct 182 from 260 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 7:
If we divide 780 by 91, we get 8 and a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 434.28
Deduct 728 from 780 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
If we divide 520 by 91, we get 5 and a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 434.285
If we take 455 away from 520, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 9:
650 divided by 91 is 7 with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 434.2857
Deduct 637 from 650 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 10:
91 goes into 130 1 times with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 434.28571
Subtract 91 from 130 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 11:
91 goes into 390 4 times with a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 434.285714
Subtract 364 from 390 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 12:
When dividing 260 by 91, we get 2 with a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 434.2857142
Deduct 182 from 260 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 13:
If we divide 780 by 91, we get 8 and a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 434.28571428
If we take 728 away from 780, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 434.28571428, with a leftover of 5.2e-08.