We're dividing 48573090 by 261 
Let's see how many times 261 fits into 48573090.

Step 1:
261 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 261

Moving on to step 2:
261 goes into 48 0 times with a remainder of 48.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 48, we get 48.
Append the next digit (5) from the dividend to 48 and continue with: 485 / 261

Going ahead to step 3:
The number 261 fits into 485 1 times, leaving a remainder of 224.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 261 from 485, we get 224.
Grab the next digit (7) from the dividend, add it to 224, then carry on: 2247 / 261

Going ahead to step 4:
261 goes into 2247 8 times with a remainder of 159.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we take 2088 away from 2247, we end up with 159.
Take the next digit (3) from the dividend and append it to 159, then repeat: 1593 / 261

Advancing to step 5:
If we divide 1593 by 261, we get 6 and a remainder of 27.
The number 6 becomes the next digit in our result. 
Result so far: 186.0
Subtracting 1566 from 1593 leaves us with 27.
Bring next digit (0) of the dividend behind the 27 and repeat the process: 270 / 261

On to step 6:
When dividing 270 by 261, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 1861.0
If we subtract 261 from 270, we get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 261

Advancing to step 7:
The number 261 fits into 99 0 times, leaving a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 18610.0
If we take 0 away from 99, we end up with 99.
Take the next digit (0) from the dividend and append it to 99, then repeat: 990 / 261

Going ahead to step 8:
When dividing 990 by 261, we get 3 with a remainder of 207.
The number 3 becomes the next digit in our result. 
Result so far: 186103.0
The remainder is 207 after subtracting 783 from 990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Advancing to step 9:
261 goes into 2070 7 times with a remainder of 243.
Record the quotient 7 as the next digit in the result. 
Result so far: 186103.7
Subtracting 1827 from 2070 leaves us with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Moving on to step 10:
When dividing 2430 by 261, we get 9 with a remainder of 81.
Record the quotient 9 as the next digit in the result. 
Result so far: 186103.79
Subtract 2349 from 2430 to get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 11:
The number 261 fits into 810 3 times, leaving a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 186103.793
Deduct 783 from 810 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 12:
The number 261 fits into 270 1 times, leaving a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 186103.7931
Subtracting 261 from 270 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.

Step 13:
The number 261 fits into 90 0 times, leaving a remainder of 90.
The next digit of our result is 0. 
Result so far: 186103.7931
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.

On to step 14:
The number 261 fits into 900 3 times, leaving a remainder of 117.
Use 3 as the next digit of our solution. 
Result so far: 186103.793103
The remainder is 117 after subtracting 783 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Going ahead to step 15:
The number 261 fits into 1170 4 times, leaving a remainder of 126.
The next digit of our result is 4. 
Result so far: 186103.7931034
Subtract 1044 from 1170 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Advancing to step 16:
If we divide 1260 by 261, we get 4 and a remainder of 216.
Put 4 as the next digit of the answer. 
Result so far: 186103.79310344
Deduct 1044 from 1260 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

After the division, we end up with 186103.79310344 and a remainder of 2.16e-07.