15141858 ÷ 261 
Our goal is to divide 15141858 by 261.

On to step 1:
1 divided by 261 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 261

Step 2:
The number 261 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 261

Step 3:
261 goes into 151 0 times with a remainder of 151.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 151 and we're left with 151.
Grab the next digit (4) from the dividend, add it to 151, then carry on: 1514 / 261

Moving on to step 4:
261 goes into 1514 5 times with a remainder of 209.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 1305 from 1514, we get 209.
Grab the next digit (1) from the dividend, add it to 209, then carry on: 2091 / 261

Step 5:
The number 261 fits into 2091 8 times, leaving a remainder of 3.
The next digit of our result is 8. 
Result so far: 58.0
Subtract 2088 from 2091 to get 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 261

Let's proceed to step 6:
261 can be fit into 38 0 times, resulting in a remainder of 38.
Put 0 as the next digit of the answer. 
Result so far: 580.0
Subtracting 0 from 38 leaves us with 38.
Fetch the next digit (5) from the dividend, attach it to 38 and continue: 385 / 261

Let's proceed to step 7:
The number 261 fits into 385 1 times, leaving a remainder of 124.
Use 1 as the next digit of our solution. 
Result so far: 5801.0
Subtracting 261 from 385 leaves us with 124.
Append the next digit (8) from the dividend to 124 and continue with: 1248 / 261

Moving on to step 8:
1248 divided by 261 is 4 with a remainder of 204.
Write down 4 as next digit of the result. 
Result so far: 58014.0
If we take 1044 away from 1248, we end up with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Advancing to step 9:
2040 divided by 261 is 7 with a remainder of 213.
The number 7 becomes the next digit in our result. 
Result so far: 58014.7
Subtract 1827 from 2040 to get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Step 10:
The number 261 fits into 2130 8 times, leaving a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 58014.78
If we subtract 2088 from 2130, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 11:
261 goes into 420 1 times with a remainder of 159.
Put 1 as the next digit of the answer. 
Result so far: 58014.781
If we subtract 261 from 420, we get 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

On to step 12:
If we divide 1590 by 261, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 58014.7816
Subtracting 1566 from 1590 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 13:
261 goes into 240 0 times with a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 58014.7816
If we take 0 away from 240, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 14:
2400 divided by 261 is 9 with a remainder of 51.
The number 9 becomes the next digit in our result. 
Result so far: 58014.781609
If we subtract 2349 from 2400, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 15:
The number 261 fits into 510 1 times, leaving a remainder of 249.
The next digit of our result is 1. 
Result so far: 58014.7816091
If we subtract 261 from 510, we get 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Going ahead to step 16:
When dividing 2490 by 261, we get 9 with a remainder of 141.
Put 9 as the next digit of the answer. 
Result so far: 58014.78160919
If we subtract 2349 from 2490, we get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

The final outcome is 58014.78160919, with a leftover of 1.41e-07.