We're dividing 61801321 by 557 
The aim is to understand the frequency of 557 in 61801321.

Going ahead to step 1:
When dividing 6 by 557, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 557

Step 2:
When dividing 61 by 557, we get 0 with a remainder of 61.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 61 to get 61.
Bring next digit (8) of the dividend behind the 61 and repeat the process: 618 / 557

Let's proceed to step 3:
If we divide 618 by 557, we get 1 and a remainder of 61.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 557 away from 618, we end up with 61.
Fetch the next digit (0) from the dividend, attach it to 61 and continue: 610 / 557

Let's proceed to step 4:
The number 557 fits into 610 1 times, leaving a remainder of 53.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 53 after subtracting 557 from 610.
Fetch the next digit (1) from the dividend, attach it to 53 and continue: 531 / 557

Moving on to step 5:
The number 557 fits into 531 0 times, leaving a remainder of 531.
Write down 0 as next digit of the result. 
Result so far: 110.0
Subtracting 0 from 531 leaves us with 531.
Take the next digit (3) from the dividend and append it to 531, then repeat: 5313 / 557

Let's proceed to step 6:
The number 557 fits into 5313 9 times, leaving a remainder of 300.
Write down 9 as next digit of the result. 
Result so far: 1109.0
Subtract 5013 from 5313 to get 300.
Fetch the next digit (2) from the dividend, attach it to 300 and continue: 3002 / 557

Going ahead to step 7:
If we divide 3002 by 557, we get 5 and a remainder of 217.
Put 5 as the next digit of the answer. 
Result so far: 11095.0
If we subtract 2785 from 3002, we get 217.
Take the next digit (1) from the dividend and append it to 217, then repeat: 2171 / 557

Let's proceed to step 8:
557 can be fit into 2171 3 times, resulting in a remainder of 500.
Record the quotient 3 as the next digit in the result. 
Result so far: 110953.0
Subtract 1671 from 2171 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 9:
The number 557 fits into 5000 8 times, leaving a remainder of 544.
Use 8 as the next digit of our solution. 
Result so far: 110953.8
If we subtract 4456 from 5000, we get 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Let's proceed to step 10:
The number 557 fits into 5440 9 times, leaving a remainder of 427.
Put 9 as the next digit of the answer. 
Result so far: 110953.89
If we take 5013 away from 5440, we end up with 427.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4270, and continue the process.

On to step 11:
557 goes into 4270 7 times with a remainder of 371.
The number 7 becomes the next digit in our result. 
Result so far: 110953.897
The remainder is 371 after subtracting 3899 from 4270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

On to step 12:
557 can be fit into 3710 6 times, resulting in a remainder of 368.
Record the quotient 6 as the next digit in the result. 
Result so far: 110953.8976
Subtract 3342 from 3710 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Advancing to step 13:
The number 557 fits into 3680 6 times, leaving a remainder of 338.
Write down 6 as next digit of the result. 
Result so far: 110953.89766
If we subtract 3342 from 3680, we get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

The final outcome is 110953.89766, with a leftover of 0.000338.