Let's divide 680438 by 91
Our goal is to divide 680438 by 91.

Moving on to step 1:
6 divided by 91 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 91

On to step 2:
The number 91 fits into 68 0 times, leaving a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Fetch the next digit (0) from the dividend, attach it to 68 and continue: 680 / 91

On to step 3:
91 can be fit into 680 7 times, resulting in a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 637 away from 680, we end up with 43.
Append the next digit (4) from the dividend to 43 and continue with: 434 / 91

Step 4:
434 divided by 91 is 4 with a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
If we subtract 364 from 434, we get 70.
Grab the next digit (3) from the dividend, add it to 70, then carry on: 703 / 91

Step 5:
If we divide 703 by 91, we get 7 and a remainder of 66.
Record the quotient 7 as the next digit in the result. 
Result so far: 747.0
If we take 637 away from 703, we end up with 66.
Append the next digit (8) from the dividend to 66 and continue with: 668 / 91

On to step 6:
668 divided by 91 is 7 with a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 7477.0
Subtract 637 from 668 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
When dividing 310 by 91, we get 3 with a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 7477.3
Subtracting 273 from 310 leaves us 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.

Going ahead to step 8:
91 can be fit into 370 4 times, resulting in a remainder of 6.
The next digit of our result is 4. 
Result so far: 7477.34
If we subtract 364 from 370, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 9:
When dividing 60 by 91, we get 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 7477.34
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 10:
If we divide 600 by 91, we get 6 and a remainder of 54.
Record the quotient 6 as the next digit in the result. 
Result so far: 7477.3406
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 11:
The number 91 fits into 540 5 times, leaving a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 7477.34065
If we subtract 455 from 540, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 12:
91 goes into 850 9 times with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 7477.340659
The remainder is 31 after subtracting 819 from 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 13:
310 divided by 91 is 3 with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 7477.3406593
Deduct 273 from 310 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.

Advancing to step 14:
The number 91 fits into 370 4 times, leaving a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 7477.34065934
The remainder is 6 after subtracting 364 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

In conclusion, the division gives 7477.34065934 with a balance of 6e-09.