Let's divide 79660785 by 557
The aim is to understand the frequency of 557 in 79660785.

Advancing to step 1:
The number 557 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 557

Advancing to step 2:
The number 557 fits into 79 0 times, leaving a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 79 leaves us with 79.
Fetch the next digit (6) from the dividend, attach it to 79 and continue: 796 / 557

Moving on to step 3:
557 goes into 796 1 times with a remainder of 239.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 557 away from 796, we end up with 239.
Bring next digit (6) of the dividend behind the 239 and repeat the process: 2396 / 557

Moving on to step 4:
When dividing 2396 by 557, we get 4 with a remainder of 168.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtract 2228 from 2396 to get 168.
Take the next digit (0) from the dividend and append it to 168, then repeat: 1680 / 557

Step 5:
When dividing 1680 by 557, we get 3 with a remainder of 9.
The next digit of our result is 3. 
Result so far: 143.0
Deduct 1671 from 1680 and we're left with 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 557

Moving on to step 6:
If we divide 97 by 557, we get 0 and a remainder of 97.
Put 0 as the next digit of the answer. 
Result so far: 1430.0
The remainder is 97 after subtracting 0 from 97.
Fetch the next digit (8) from the dividend, attach it to 97 and continue: 978 / 557

Let's proceed to step 7:
557 goes into 978 1 times with a remainder of 421.
The number 1 becomes the next digit in our result. 
Result so far: 14301.0
Subtract 557 from 978 to get 421.
Grab the next digit (5) from the dividend, add it to 421, then carry on: 4215 / 557

Step 8:
If we divide 4215 by 557, we get 7 and a remainder of 316.
Record the quotient 7 as the next digit in the result. 
Result so far: 143017.0
Subtracting 3899 from 4215 leaves us with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Step 9:
557 goes into 3160 5 times with a remainder of 375.
The number 5 becomes the next digit in our result. 
Result so far: 143017.5
Subtracting 2785 from 3160 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 10:
557 can be fit into 3750 6 times, resulting in a remainder of 408.
Use 6 as the next digit of our solution. 
Result so far: 143017.56
Subtract 3342 from 3750 to get 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Going ahead to step 11:
557 goes into 4080 7 times with a remainder of 181.
Use 7 as the next digit of our solution. 
Result so far: 143017.567
The remainder is 181 after subtracting 3899 from 4080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Step 12:
557 can be fit into 1810 3 times, resulting in a remainder of 139.
The number 3 becomes the next digit in our result. 
Result so far: 143017.5673
The remainder is 139 after subtracting 1671 from 1810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 13:
557 goes into 1390 2 times with a remainder of 276.
Put 2 as the next digit of the answer. 
Result so far: 143017.56732
The remainder is 276 after subtracting 1114 from 1390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Going ahead to step 14:
557 goes into 2760 4 times with a remainder of 532.
The next digit of our result is 4. 
Result so far: 143017.567324
Deduct 2228 from 2760 and we're left with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

On to step 15:
The number 557 fits into 5320 9 times, leaving a remainder of 307.
The number 9 becomes the next digit in our result. 
Result so far: 143017.5673249
If we subtract 5013 from 5320, we get 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Moving on to step 16:
557 can be fit into 3070 5 times, resulting in a remainder of 285.
Use 5 as the next digit of our solution. 
Result so far: 143017.56732495
Subtracting 2785 from 3070 leaves us with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

The final result is 143017.56732495 with a remainder of 2.85e-07.