52549448 ÷ 561 
The aim is to understand the frequency of 561 in 52549448.

Moving on to step 1:
5 divided by 561 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 561

Let's proceed to step 2:
561 can be fit into 52 0 times, resulting in a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Fetch the next digit (5) from the dividend, attach it to 52 and continue: 525 / 561

Let's proceed to step 3:
When dividing 525 by 561, we get 0 with a remainder of 525.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 525 leaves us with 525.
Grab the next digit (4) from the dividend, add it to 525, then carry on: 5254 / 561

Moving on to step 4:
5254 divided by 561 is 9 with a remainder of 205.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 5049 from 5254 and we're left with 205.
Grab the next digit (9) from the dividend, add it to 205, then carry on: 2059 / 561

Advancing to step 5:
If we divide 2059 by 561, we get 3 and a remainder of 376.
Write down 3 as next digit of the result. 
Result so far: 93.0
Subtracting 1683 from 2059 leaves us with 376.
Fetch the next digit (4) from the dividend, attach it to 376 and continue: 3764 / 561

Moving on to step 6:
The number 561 fits into 3764 6 times, leaving a remainder of 398.
Use 6 as the next digit of our solution. 
Result so far: 936.0
The remainder is 398 after subtracting 3366 from 3764.
Append the next digit (4) from the dividend to 398 and continue with: 3984 / 561

Moving on to step 7:
3984 divided by 561 is 7 with a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 9367.0
Subtracting 3927 from 3984 leaves us with 57.
Take the next digit (8) from the dividend and append it to 57, then repeat: 578 / 561

Going ahead to step 8:
578 divided by 561 is 1 with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 93671.0
Subtracting 561 from 578 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 9:
The number 561 fits into 170 0 times, leaving a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 93671.0
If we take 0 away from 170, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 10:
If we divide 1700 by 561, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 93671.03
Deduct 1683 from 1700 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 11:
561 goes into 170 0 times with a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 93671.03
Deduct 0 from 170 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 12:
When dividing 1700 by 561, we get 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 93671.0303
Deduct 1683 from 1700 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 13:
When dividing 170 by 561, we get 0 with a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 93671.0303
Subtracting 0 from 170 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 14:
The number 561 fits into 1700 3 times, leaving a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 93671.030303
Deduct 1683 from 1700 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 15:
If we divide 170 by 561, we get 0 and a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 93671.030303
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 16:
When dividing 1700 by 561, we get 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 93671.03030303
Deduct 1683 from 1700 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The quotient of the division is 93671.03030303, and the remainder is 1.7e-08.