52981472 ÷ 261 
The aim is to understand the frequency of 261 in 52981472.

On to step 1:
261 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 261

Advancing to step 2:
The number 261 fits into 52 0 times, leaving a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Include the next digit (9) from the dividend after 52, then repeat: 529 / 261

Moving on to step 3:
If we divide 529 by 261, we get 2 and a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 522 away from 529, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 261

Moving on to step 4:
When dividing 78 by 261, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 20.0
The remainder is 78 after subtracting 0 from 78.
Fetch the next digit (1) from the dividend, attach it to 78 and continue: 781 / 261

On to step 5:
261 goes into 781 2 times with a remainder of 259.
Put 2 as the next digit of the answer. 
Result so far: 202.0
If we subtract 522 from 781, we get 259.
Append the next digit (4) from the dividend to 259 and continue with: 2594 / 261

Moving on to step 6:
261 can be fit into 2594 9 times, resulting in a remainder of 245.
The number 9 becomes the next digit in our result. 
Result so far: 2029.0
Subtracting 2349 from 2594 leaves us with 245.
Append the next digit (7) from the dividend to 245 and continue with: 2457 / 261

Step 7:
The number 261 fits into 2457 9 times, leaving a remainder of 108.
Write down 9 as next digit of the result. 
Result so far: 20299.0
Deduct 2349 from 2457 and we're left with 108.
Fetch the next digit (2) from the dividend, attach it to 108 and continue: 1082 / 261

Step 8:
When dividing 1082 by 261, we get 4 with a remainder of 38.
The number 4 becomes the next digit in our result. 
Result so far: 202994.0
Deduct 1044 from 1082 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 9:
When dividing 380 by 261, we get 1 with a remainder of 119.
The number 1 becomes the next digit in our result. 
Result so far: 202994.1
If we take 261 away from 380, we end up with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 10:
1190 divided by 261 is 4 with a remainder of 146.
Put 4 as the next digit of the answer. 
Result so far: 202994.14
Subtract 1044 from 1190 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Moving on to step 11:
261 goes into 1460 5 times with a remainder of 155.
Put 5 as the next digit of the answer. 
Result so far: 202994.145
The remainder is 155 after subtracting 1305 from 1460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Moving on to step 12:
1550 divided by 261 is 5 with a remainder of 245.
The number 5 becomes the next digit in our result. 
Result so far: 202994.1455
Subtracting 1305 from 1550 leaves us with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

After the division, we end up with 202994.1455 and a remainder of 0.00245.