15983925 divided by 680 
Let's see how many times 680 fits into 15983925.

Step 1:
680 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 680

On to step 2:
680 can be fit into 15 0 times, resulting in a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 680

Let's proceed to step 3:
680 goes into 159 0 times with a remainder of 159.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 159 to get 159.
Take the next digit (8) from the dividend and append it to 159, then repeat: 1598 / 680

Moving on to step 4:
The number 680 fits into 1598 2 times, leaving a remainder of 238.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 1360 from 1598, we get 238.
Take the next digit (3) from the dividend and append it to 238, then repeat: 2383 / 680

On to step 5:
If we divide 2383 by 680, we get 3 and a remainder of 343.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we take 2040 away from 2383, we end up with 343.
Bring next digit (9) of the dividend behind the 343 and repeat the process: 3439 / 680

Advancing to step 6:
The number 680 fits into 3439 5 times, leaving a remainder of 39.
Record the quotient 5 as the next digit in the result. 
Result so far: 235.0
Subtract 3400 from 3439 to get 39.
Fetch the next digit (2) from the dividend, attach it to 39 and continue: 392 / 680

Going ahead to step 7:
392 divided by 680 is 0 with a remainder of 392.
Write down 0 as next digit of the result. 
Result so far: 2350.0
Subtract 0 from 392 to get 392.
Append the next digit (5) from the dividend to 392 and continue with: 3925 / 680

Step 8:
680 can be fit into 3925 5 times, resulting in a remainder of 525.
The next digit of our result is 5. 
Result so far: 23505.0
Subtract 3400 from 3925 to get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Step 9:
If we divide 5250 by 680, we get 7 and a remainder of 490.
The number 7 becomes the next digit in our result. 
Result so far: 23505.7
If we take 4760 away from 5250, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Let's proceed to step 10:
680 can be fit into 4900 7 times, resulting in a remainder of 140.
The next digit of our result is 7. 
Result so far: 23505.77
Subtract 4760 from 4900 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

In conclusion, the division gives 23505.77 with a balance of 0.14.