We're dividing 66440985 by 557 
The aim is to understand the frequency of 557 in 66440985.

Going ahead to step 1:
If we divide 6 by 557, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 557

Going ahead to step 2:
66 divided by 557 is 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Include the next digit (4) from the dividend after 66, then repeat: 664 / 557

Moving on to step 3:
557 can be fit into 664 1 times, resulting in a remainder of 107.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 557 away from 664, we end up with 107.
Append the next digit (4) from the dividend to 107 and continue with: 1074 / 557

Moving on to step 4:
1074 divided by 557 is 1 with a remainder of 517.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we take 557 away from 1074, we end up with 517.
Include the next digit (0) from the dividend after 517, then repeat: 5170 / 557

Let's proceed to step 5:
5170 divided by 557 is 9 with a remainder of 157.
The next digit of our result is 9. 
Result so far: 119.0
Subtract 5013 from 5170 to get 157.
Take the next digit (9) from the dividend and append it to 157, then repeat: 1579 / 557

Going ahead to step 6:
557 goes into 1579 2 times with a remainder of 465.
Use 2 as the next digit of our solution. 
Result so far: 1192.0
The remainder is 465 after subtracting 1114 from 1579.
Take the next digit (8) from the dividend and append it to 465, then repeat: 4658 / 557

On to step 7:
557 goes into 4658 8 times with a remainder of 202.
The number 8 becomes the next digit in our result. 
Result so far: 11928.0
If we take 4456 away from 4658, we end up with 202.
Include the next digit (5) from the dividend after 202, then repeat: 2025 / 557

Step 8:
When dividing 2025 by 557, we get 3 with a remainder of 354.
Record the quotient 3 as the next digit in the result. 
Result so far: 119283.0
If we take 1671 away from 2025, we end up with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 9:
557 goes into 3540 6 times with a remainder of 198.
Record the quotient 6 as the next digit in the result. 
Result so far: 119283.6
If we take 3342 away from 3540, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Step 10:
When dividing 1980 by 557, we get 3 with a remainder of 309.
Use 3 as the next digit of our solution. 
Result so far: 119283.63
If we subtract 1671 from 1980, we get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Let's proceed to step 11:
If we divide 3090 by 557, we get 5 and a remainder of 305.
Write down 5 as next digit of the result. 
Result so far: 119283.635
The remainder is 305 after subtracting 2785 from 3090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Moving on to step 12:
If we divide 3050 by 557, we get 5 and a remainder of 265.
Write down 5 as next digit of the result. 
Result so far: 119283.6355
Subtracting 2785 from 3050 leaves us with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final result is 119283.6355 with a remainder of 0.00265.