Let's divide 66988596 by 557
The aim is to understand the frequency of 557 in 66988596.

Let's proceed to step 1:
557 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 557

Advancing to step 2:
557 can be fit into 66 0 times, resulting in a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Grab the next digit (9) from the dividend, add it to 66, then carry on: 669 / 557

Advancing to step 3:
When dividing 669 by 557, we get 1 with a remainder of 112.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 112 after subtracting 557 from 669.
Bring next digit (8) of the dividend behind the 112 and repeat the process: 1128 / 557

Let's proceed to step 4:
557 can be fit into 1128 2 times, resulting in a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 14 after subtracting 1114 from 1128.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 557

Let's proceed to step 5:
148 divided by 557 is 0 with a remainder of 148.
Write down 0 as next digit of the result. 
Result so far: 120.0
Subtracting 0 from 148 leaves us with 148.
Grab the next digit (5) from the dividend, add it to 148, then carry on: 1485 / 557

Advancing to step 6:
1485 divided by 557 is 2 with a remainder of 371.
Use 2 as the next digit of our solution. 
Result so far: 1202.0
The remainder is 371 after subtracting 1114 from 1485.
Fetch the next digit (9) from the dividend, attach it to 371 and continue: 3719 / 557

On to step 7:
557 can be fit into 3719 6 times, resulting in a remainder of 377.
The number 6 becomes the next digit in our result. 
Result so far: 12026.0
If we subtract 3342 from 3719, we get 377.
Take the next digit (6) from the dividend and append it to 377, then repeat: 3776 / 557

Step 8:
3776 divided by 557 is 6 with a remainder of 434.
The next digit of our result is 6. 
Result so far: 120266.0
Subtract 3342 from 3776 to get 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Moving on to step 9:
If we divide 4340 by 557, we get 7 and a remainder of 441.
The number 7 becomes the next digit in our result. 
Result so far: 120266.7
If we take 3899 away from 4340, we end up with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Advancing to step 10:
If we divide 4410 by 557, we get 7 and a remainder of 511.
Write down 7 as next digit of the result. 
Result so far: 120266.77
The remainder is 511 after subtracting 3899 from 4410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

The final result is 120266.77 with a remainder of 0.511.