621312 ÷ 91 
We're looking to find how many times 91 goes into 621312.

Step 1:
91 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 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.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 62 and we're left with 62.
Append the next digit (1) from the dividend to 62 and continue with: 621 / 91

Advancing to step 3:
If we divide 621 by 91, we get 6 and a remainder of 75.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 546 from 621 and we're left with 75.
Include the next digit (3) from the dividend after 75, then repeat: 753 / 91

Advancing to step 4:
When dividing 753 by 91, we get 8 with a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 68.0
If we subtract 728 from 753, we get 25.
Grab the next digit (1) from the dividend, add it to 25, then carry on: 251 / 91

Step 5:
91 can be fit into 251 2 times, resulting in a remainder of 69.
The number 2 becomes the next digit in our result. 
Result so far: 682.0
The remainder is 69 after subtracting 182 from 251.
Bring next digit (2) of the dividend behind the 69 and repeat the process: 692 / 91

On to step 6:
91 can be fit into 692 7 times, resulting in a remainder of 55.
The next digit of our result is 7. 
Result so far: 6827.0
The remainder is 55 after subtracting 637 from 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 7:
550 divided by 91 is 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 6827.6
Deduct 546 from 550 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
91 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 6827.6
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
If we divide 400 by 91, we get 4 and a remainder of 36.
The next digit of our result is 4. 
Result so far: 6827.604
If we take 364 away from 400, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 10:
91 can be fit into 360 3 times, resulting in a remainder of 87.
Use 3 as the next digit of our solution. 
Result so far: 6827.6043
Deduct 273 from 360 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 11:
870 divided by 91 is 9 with a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 6827.60439
Deduct 819 from 870 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 12:
91 goes into 510 5 times with a remainder of 55.
The next digit of our result is 5. 
Result so far: 6827.604395
Subtracting 455 from 510 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 13:
91 can be fit into 550 6 times, resulting in a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 6827.6043956
If we subtract 546 from 550, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 14:
91 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 6827.6043956
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The quotient of the division is 6827.6043956, and the remainder is 4e-08.