We look at the division of 620610 by 91 
Let's see how many times 91 fits into 620610.

Going ahead to step 1:
When dividing 6 by 91, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 91

Moving on to step 2:
91 goes into 62 0 times with a remainder of 62.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 62 leaves us with 62.
Grab the next digit (0) from the dividend, add it to 62, then carry on: 620 / 91

On to step 3:
If we divide 620 by 91, we get 6 and a remainder of 74.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 546 from 620, we get 74.
Include the next digit (6) from the dividend after 74, then repeat: 746 / 91

Going ahead to step 4:
The number 91 fits into 746 8 times, leaving a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 68.0
Subtract 728 from 746 to get 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 91

Step 5:
The number 91 fits into 181 1 times, leaving a remainder of 90.
Record the quotient 1 as the next digit in the result. 
Result so far: 681.0
Subtracting 91 from 181 leaves us with 90.
Grab the next digit (0) from the dividend, add it to 90, then carry on: 900 / 91

Moving on to step 6:
900 divided by 91 is 9 with a remainder of 81.
Record the quotient 9 as the next digit in the result. 
Result so far: 6819.0
If we take 819 away from 900, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Going ahead to step 7:
The number 91 fits into 810 8 times, leaving a remainder of 82.
The next digit of our result is 8. 
Result so far: 6819.8
Subtracting 728 from 810 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 8:
When dividing 820 by 91, we get 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 6819.89
If we take 819 away from 820, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
When dividing 10 by 91, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 6819.89
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
91 can be fit into 100 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 6819.8901
If we take 91 away from 100, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 11:
The number 91 fits into 90 0 times, leaving a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 6819.8901
Subtracting 0 from 90 leaves us 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.

On to step 12:
91 goes into 900 9 times with a remainder of 81.
The number 9 becomes the next digit in our result. 
Result so far: 6819.890109
Subtracting 819 from 900 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 13:
If we divide 810 by 91, we get 8 and a remainder of 82.
The next digit of our result is 8. 
Result so far: 6819.8901098
If we subtract 728 from 810, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 14:
When dividing 820 by 91, we get 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 6819.89010989
Deduct 819 from 820 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 6819.89010989 with a remainder of 1e-09.