Let's divide 15993956 by 691
We want to divide 15993956 by 691.

Step 1:
1 divided by 691 is 0 with 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.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 691

On to step 2:
The number 691 fits into 15 0 times, leaving a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (9) of the dividend behind the 15 and repeat the process: 159 / 691

Let's proceed to step 3:
691 can be fit into 159 0 times, resulting in a remainder of 159.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 159, we get 159.
Bring next digit (9) of the dividend behind the 159 and repeat the process: 1599 / 691

Step 4:
When dividing 1599 by 691, we get 2 with a remainder of 217.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1382 away from 1599, we end up with 217.
Include the next digit (3) from the dividend after 217, then repeat: 2173 / 691

Let's proceed to step 5:
691 goes into 2173 3 times with a remainder of 100.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we take 2073 away from 2173, we end up with 100.
Fetch the next digit (9) from the dividend, attach it to 100 and continue: 1009 / 691

Going ahead to step 6:
If we divide 1009 by 691, we get 1 and a remainder of 318.
Record the quotient 1 as the next digit in the result. 
Result so far: 231.0
If we subtract 691 from 1009, we get 318.
Grab the next digit (5) from the dividend, add it to 318, then carry on: 3185 / 691

Going ahead to step 7:
When dividing 3185 by 691, we get 4 with a remainder of 421.
Record the quotient 4 as the next digit in the result. 
Result so far: 2314.0
Deduct 2764 from 3185 and we're left with 421.
Include the next digit (6) from the dividend after 421, then repeat: 4216 / 691

Going ahead to step 8:
The number 691 fits into 4216 6 times, leaving a remainder of 70.
Put 6 as the next digit of the answer. 
Result so far: 23146.0
Subtracting 4146 from 4216 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 9:
691 can be fit into 700 1 times, resulting in a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 23146.1
Subtracting 691 from 700 leaves us 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.

On to step 10:
90 divided by 691 is 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 23146.1
The remainder is 90 after subtracting 0 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 11:
When dividing 900 by 691, we get 1 with a remainder of 209.
Use 1 as the next digit of our solution. 
Result so far: 23146.101
If we take 691 away from 900, we end up with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Let's proceed to step 12:
If we divide 2090 by 691, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 23146.1013
Deduct 2073 from 2090 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 13:
691 can be fit into 170 0 times, resulting in a remainder of 170.
The next digit of our result is 0. 
Result so far: 23146.1013
Deduct 0 from 170 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 14:
691 can be fit into 1700 2 times, resulting in a remainder of 318.
Write down 2 as next digit of the result. 
Result so far: 23146.101302
Deduct 1382 from 1700 and we're left with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Going ahead to step 15:
3180 divided by 691 is 4 with a remainder of 416.
Record the quotient 4 as the next digit in the result. 
Result so far: 23146.1013024
Subtracting 2764 from 3180 leaves us with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Going ahead to step 16:
The number 691 fits into 4160 6 times, leaving a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 23146.10130246
If we take 4146 away from 4160, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

In conclusion, the division gives 23146.10130246 with a balance of 1.4e-08.