Let's divide 80639336 by 680
We're looking to find how many times 680 goes into 80639336.

Moving on to step 1:
680 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 680

Step 2:
When dividing 80 by 680, we get 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Fetch the next digit (6) from the dividend, attach it to 80 and continue: 806 / 680

Advancing to step 3:
680 goes into 806 1 times with a remainder of 126.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 680 from 806 to get 126.
Grab the next digit (3) from the dividend, add it to 126, then carry on: 1263 / 680

Moving on to step 4:
680 can be fit into 1263 1 times, resulting in a remainder of 583.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 680 from 1263 to get 583.
Append the next digit (9) from the dividend to 583 and continue with: 5839 / 680

Advancing to step 5:
The number 680 fits into 5839 8 times, leaving a remainder of 399.
Put 8 as the next digit of the answer. 
Result so far: 118.0
If we subtract 5440 from 5839, we get 399.
Bring next digit (3) of the dividend behind the 399 and repeat the process: 3993 / 680

Let's proceed to step 6:
When dividing 3993 by 680, we get 5 with a remainder of 593.
Write down 5 as next digit of the result. 
Result so far: 1185.0
Subtracting 3400 from 3993 leaves us with 593.
Bring next digit (3) of the dividend behind the 593 and repeat the process: 5933 / 680

Moving on to step 7:
If we divide 5933 by 680, we get 8 and a remainder of 493.
Use 8 as the next digit of our solution. 
Result so far: 11858.0
Subtract 5440 from 5933 to get 493.
Fetch the next digit (6) from the dividend, attach it to 493 and continue: 4936 / 680

On to step 8:
The number 680 fits into 4936 7 times, leaving a remainder of 176.
The number 7 becomes the next digit in our result. 
Result so far: 118587.0
Subtract 4760 from 4936 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Going ahead to step 9:
If we divide 1760 by 680, we get 2 and a remainder of 400.
Record the quotient 2 as the next digit in the result. 
Result so far: 118587.2
The remainder is 400 after subtracting 1360 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 10:
4000 divided by 680 is 5 with a remainder of 600.
Put 5 as the next digit of the answer. 
Result so far: 118587.25
Deduct 3400 from 4000 and we're left with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Moving on to step 11:
The number 680 fits into 6000 8 times, leaving a remainder of 560.
Write down 8 as next digit of the result. 
Result so far: 118587.258
If we subtract 5440 from 6000, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Step 12:
680 can be fit into 5600 8 times, resulting in a remainder of 160.
Write down 8 as next digit of the result. 
Result so far: 118587.2588
Deduct 5440 from 5600 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Our division results in 118587.2588 with a remaining 0.0016.