We look at the division of 15715279 by 261 
We're looking to find how many times 261 goes into 15715279.

Going ahead to step 1:
1 divided by 261 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 261

Advancing to step 2:
15 divided by 261 is 0 with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 261

On to step 3:
The number 261 fits into 157 0 times, leaving a remainder of 157.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 157 leaves us with 157.
Grab the next digit (1) from the dividend, add it to 157, then carry on: 1571 / 261

On to step 4:
1571 divided by 261 is 6 with a remainder of 5.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 1566 from 1571 to get 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 261

Advancing to step 5:
When dividing 55 by 261, we get 0 with a remainder of 55.
The next digit of our result is 0. 
Result so far: 60.0
If we subtract 0 from 55, we get 55.
Include the next digit (2) from the dividend after 55, then repeat: 552 / 261

Going ahead to step 6:
The number 261 fits into 552 2 times, leaving a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 602.0
Subtract 522 from 552 to get 30.
Take the next digit (7) from the dividend and append it to 30, then repeat: 307 / 261

Step 7:
The number 261 fits into 307 1 times, leaving a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 6021.0
If we subtract 261 from 307, we get 46.
Take the next digit (9) from the dividend and append it to 46, then repeat: 469 / 261

Advancing to step 8:
If we divide 469 by 261, we get 1 and a remainder of 208.
Use 1 as the next digit of our solution. 
Result so far: 60211.0
Subtracting 261 from 469 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 9:
When dividing 2080 by 261, we get 7 with a remainder of 253.
Use 7 as the next digit of our solution. 
Result so far: 60211.7
Deduct 1827 from 2080 and we're left with 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Moving on to step 10:
261 can be fit into 2530 9 times, resulting in a remainder of 181.
Write down 9 as next digit of the result. 
Result so far: 60211.79
Subtract 2349 from 2530 to get 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Advancing to step 11:
If we divide 1810 by 261, we get 6 and a remainder of 244.
Use 6 as the next digit of our solution. 
Result so far: 60211.796
The remainder is 244 after subtracting 1566 from 1810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Moving on to step 12:
When dividing 2440 by 261, we get 9 with a remainder of 91.
Put 9 as the next digit of the answer. 
Result so far: 60211.7969
If we subtract 2349 from 2440, we get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 13:
910 divided by 261 is 3 with a remainder of 127.
Put 3 as the next digit of the answer. 
Result so far: 60211.79693
If we subtract 783 from 910, we get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 14:
261 can be fit into 1270 4 times, resulting in a remainder of 226.
Write down 4 as next digit of the result. 
Result so far: 60211.796934
If we subtract 1044 from 1270, we get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 15:
When dividing 2260 by 261, we get 8 with a remainder of 172.
Use 8 as the next digit of our solution. 
Result so far: 60211.7969348
The remainder is 172 after subtracting 2088 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Let's proceed to step 16:
The number 261 fits into 1720 6 times, leaving a remainder of 154.
The next digit of our result is 6. 
Result so far: 60211.79693486
If we subtract 1566 from 1720, we get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

After the division, we end up with 60211.79693486 and a remainder of 1.54e-07.