63609425 ÷ 558 
The aim is to understand the frequency of 558 in 63609425.

Moving on to step 1:
When dividing 6 by 558, 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.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 558

On to step 2:
The number 558 fits into 63 0 times, leaving a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Fetch the next digit (6) from the dividend, attach it to 63 and continue: 636 / 558

Let's proceed to step 3:
If we divide 636 by 558, we get 1 and a remainder of 78.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 558 from 636 leaves us with 78.
Grab the next digit (0) from the dividend, add it to 78, then carry on: 780 / 558

On to step 4:
558 goes into 780 1 times with a remainder of 222.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we subtract 558 from 780, we get 222.
Include the next digit (9) from the dividend after 222, then repeat: 2229 / 558

Advancing to step 5:
558 goes into 2229 3 times with a remainder of 555.
Use 3 as the next digit of our solution. 
Result so far: 113.0
Subtract 1674 from 2229 to get 555.
Bring next digit (4) of the dividend behind the 555 and repeat the process: 5554 / 558

Let's proceed to step 6:
558 goes into 5554 9 times with a remainder of 532.
Write down 9 as next digit of the result. 
Result so far: 1139.0
Subtracting 5022 from 5554 leaves us with 532.
Fetch the next digit (2) from the dividend, attach it to 532 and continue: 5322 / 558

Advancing to step 7:
If we divide 5322 by 558, we get 9 and a remainder of 300.
Write down 9 as next digit of the result. 
Result so far: 11399.0
Subtracting 5022 from 5322 leaves us with 300.
Take the next digit (5) from the dividend and append it to 300, then repeat: 3005 / 558

Moving on to step 8:
3005 divided by 558 is 5 with a remainder of 215.
Record the quotient 5 as the next digit in the result. 
Result so far: 113995.0
The remainder is 215 after subtracting 2790 from 3005.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Let's proceed to step 9:
The number 558 fits into 2150 3 times, leaving a remainder of 476.
Use 3 as the next digit of our solution. 
Result so far: 113995.3
The remainder is 476 after subtracting 1674 from 2150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Let's proceed to step 10:
558 goes into 4760 8 times with a remainder of 296.
Put 8 as the next digit of the answer. 
Result so far: 113995.38
The remainder is 296 after subtracting 4464 from 4760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Going ahead to step 11:
The number 558 fits into 2960 5 times, leaving a remainder of 170.
Write down 5 as next digit of the result. 
Result so far: 113995.385
Deduct 2790 from 2960 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.

Step 12:
558 can be fit into 1700 3 times, resulting in a remainder of 26.
Put 3 as the next digit of the answer. 
Result so far: 113995.3853
If we subtract 1674 from 1700, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 13:
558 goes into 260 0 times with a remainder of 260.
Use 0 as the next digit of our solution. 
Result so far: 113995.3853
If we subtract 0 from 260, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 14:
2600 divided by 558 is 4 with a remainder of 368.
Write down 4 as next digit of the result. 
Result so far: 113995.385304
If we subtract 2232 from 2600, we 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.

On to step 15:
3680 divided by 558 is 6 with a remainder of 332.
Record the quotient 6 as the next digit in the result. 
Result so far: 113995.3853046
If we take 3348 away from 3680, we end up with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

On to step 16:
558 goes into 3320 5 times with a remainder of 530.
Record the quotient 5 as the next digit in the result. 
Result so far: 113995.38530465
Deduct 2790 from 3320 and we're left with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

After the division, we end up with 113995.38530465 and a remainder of 5.3e-07.