Let's divide 509437 by 91
We want to figure out the number of times 509437 can be divided by 91.

Going ahead to step 1:
91 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 91

On to step 2:
When dividing 50 by 91, we get 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Fetch the next digit (9) from the dividend, attach it to 50 and continue: 509 / 91

Step 3:
The number 91 fits into 509 5 times, leaving a remainder of 54.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 455 from 509 to get 54.
Grab the next digit (4) from the dividend, add it to 54, then carry on: 544 / 91

On to step 4:
91 can be fit into 544 5 times, resulting in a remainder of 89.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Subtracting 455 from 544 leaves us with 89.
Take the next digit (3) from the dividend and append it to 89, then repeat: 893 / 91

On to step 5:
91 goes into 893 9 times with a remainder of 74.
Use 9 as the next digit of our solution. 
Result so far: 559.0
Subtract 819 from 893 to get 74.
Take the next digit (7) from the dividend and append it to 74, then repeat: 747 / 91

Moving on to step 6:
747 divided by 91 is 8 with a remainder of 19.
Write down 8 as next digit of the result. 
Result so far: 5598.0
Subtracting 728 from 747 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 7:
If we divide 190 by 91, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 5598.2
If we subtract 182 from 190, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
91 goes into 80 0 times with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 5598.2
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 9:
If we divide 800 by 91, we get 8 and a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 5598.208
The remainder is 72 after subtracting 728 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 10:
If we divide 720 by 91, we get 7 and a remainder of 83.
Put 7 as the next digit of the answer. 
Result so far: 5598.2087
Deduct 637 from 720 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Moving on to step 11:
91 goes into 830 9 times with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 5598.20879
If we take 819 away from 830, we end up 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.

Step 12:
110 divided by 91 is 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 5598.208791
Deduct 91 from 110 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 13:
If we divide 190 by 91, we get 2 and a remainder of 8.
The next digit of our result is 2. 
Result so far: 5598.2087912
If we take 182 away from 190, we end up 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.

Moving on to step 14:
91 goes into 80 0 times with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 5598.2087912
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 5598.2087912 with a remaining 8e-08.