Let's divide 20604559 by 553
The aim is to understand the frequency of 553 in 20604559.

On to step 1:
The number 553 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 553

Moving on to step 2:
The number 553 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 553

Going ahead to step 3:
The number 553 fits into 206 0 times, leaving a remainder of 206.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 206, we get 206.
Fetch the next digit (0) from the dividend, attach it to 206 and continue: 2060 / 553

On to step 4:
The number 553 fits into 2060 3 times, leaving a remainder of 401.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 1659 from 2060 to get 401.
Take the next digit (4) from the dividend and append it to 401, then repeat: 4014 / 553

Moving on to step 5:
The number 553 fits into 4014 7 times, leaving a remainder of 143.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
Deduct 3871 from 4014 and we're left with 143.
Grab the next digit (5) from the dividend, add it to 143, then carry on: 1435 / 553

On to step 6:
553 goes into 1435 2 times with a remainder of 329.
Use 2 as the next digit of our solution. 
Result so far: 372.0
The remainder is 329 after subtracting 1106 from 1435.
Grab the next digit (5) from the dividend, add it to 329, then carry on: 3295 / 553

Going ahead to step 7:
If we divide 3295 by 553, we get 5 and a remainder of 530.
Use 5 as the next digit of our solution. 
Result so far: 3725.0
Subtract 2765 from 3295 to get 530.
Append the next digit (9) from the dividend to 530 and continue with: 5309 / 553

On to step 8:
553 goes into 5309 9 times with a remainder of 332.
Use 9 as the next digit of our solution. 
Result so far: 37259.0
Deduct 4977 from 5309 and we're left 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.

Moving on to step 9:
553 can be fit into 3320 6 times, resulting in a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 37259.6
Subtracting 3318 from 3320 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
553 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 37259.6
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
553 goes into 200 0 times with a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 37259.6
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 37259.6 and a remainder of 0.02.