15912056 divided by 209 
We want to figure out the number of times 15912056 can be divided by 209.

Advancing to step 1:
The number 209 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 209

Step 2:
If we divide 15 by 209, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 209

Moving on to step 3:
When dividing 159 by 209, we get 0 with a remainder of 159.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 159 after subtracting 0 from 159.
Include the next digit (1) from the dividend after 159, then repeat: 1591 / 209

Step 4:
The number 209 fits into 1591 7 times, leaving a remainder of 128.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 1463 from 1591 and we're left with 128.
Include the next digit (2) from the dividend after 128, then repeat: 1282 / 209

Moving on to step 5:
209 can be fit into 1282 6 times, resulting in a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 76.0
If we subtract 1254 from 1282, we get 28.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 209

On to step 6:
If we divide 280 by 209, we get 1 and a remainder of 71.
The next digit of our result is 1. 
Result so far: 761.0
Subtracting 209 from 280 leaves us with 71.
Include the next digit (5) from the dividend after 71, then repeat: 715 / 209

Going ahead to step 7:
209 goes into 715 3 times with a remainder of 88.
The number 3 becomes the next digit in our result. 
Result so far: 7613.0
Subtracting 627 from 715 leaves us with 88.
Take the next digit (6) from the dividend and append it to 88, then repeat: 886 / 209

Moving on to step 8:
886 divided by 209 is 4 with a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 76134.0
If we take 836 away from 886, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
500 divided by 209 is 2 with a remainder of 82.
Use 2 as the next digit of our solution. 
Result so far: 76134.2
If we subtract 418 from 500, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 10:
The number 209 fits into 820 3 times, leaving a remainder of 193.
The next digit of our result is 3. 
Result so far: 76134.23
Deduct 627 from 820 and we're left with 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Moving on to step 11:
When dividing 1930 by 209, we get 9 with a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 76134.239
If we subtract 1881 from 1930, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 12:
209 can be fit into 490 2 times, resulting in a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 76134.2392
If we subtract 418 from 490, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 13:
The number 209 fits into 720 3 times, leaving a remainder of 93.
Put 3 as the next digit of the answer. 
Result so far: 76134.23923
If we take 627 away from 720, we end up with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 14:
The number 209 fits into 930 4 times, leaving a remainder of 94.
Write down 4 as next digit of the result. 
Result so far: 76134.239234
Deduct 836 from 930 and we're left with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 15:
940 divided by 209 is 4 with a remainder of 104.
Record the quotient 4 as the next digit in the result. 
Result so far: 76134.2392344
Subtracting 836 from 940 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

The final outcome is 76134.2392344, with a leftover of 1.04e-06.