We look at the division of 18585490 by 553 
The aim is to understand the frequency of 553 in 18585490.

Step 1:
When dividing 1 by 553, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 553

Going ahead to step 2:
The number 553 fits into 18 0 times, leaving a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 553

Let's proceed to step 3:
185 divided by 553 is 0 with a remainder of 185.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 185 and we're left with 185.
Take the next digit (8) from the dividend and append it to 185, then repeat: 1858 / 553

Step 4:
If we divide 1858 by 553, we get 3 and a remainder of 199.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 1659 from 1858 leaves us with 199.
Grab the next digit (5) from the dividend, add it to 199, then carry on: 1995 / 553

On to step 5:
When dividing 1995 by 553, we get 3 with a remainder of 336.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
The remainder is 336 after subtracting 1659 from 1995.
Grab the next digit (4) from the dividend, add it to 336, then carry on: 3364 / 553

Step 6:
The number 553 fits into 3364 6 times, leaving a remainder of 46.
The next digit of our result is 6. 
Result so far: 336.0
Subtracting 3318 from 3364 leaves us with 46.
Bring next digit (9) of the dividend behind the 46 and repeat the process: 469 / 553

Let's proceed to step 7:
When dividing 469 by 553, we get 0 with a remainder of 469.
Put 0 as the next digit of the answer. 
Result so far: 3360.0
If we subtract 0 from 469, we get 469.
Take the next digit (0) from the dividend and append it to 469, then repeat: 4690 / 553

Moving on to step 8:
4690 divided by 553 is 8 with a remainder of 266.
Record the quotient 8 as the next digit in the result. 
Result so far: 33608.0
The remainder is 266 after subtracting 4424 from 4690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

On to step 9:
553 can be fit into 2660 4 times, resulting in a remainder of 448.
Put 4 as the next digit of the answer. 
Result so far: 33608.4
Deduct 2212 from 2660 and we're left with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Advancing to step 10:
If we divide 4480 by 553, we get 8 and a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 33608.48
If we subtract 4424 from 4480, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 11:
The number 553 fits into 560 1 times, leaving a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 33608.481
If we subtract 553 from 560, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 12:
When dividing 70 by 553, we get 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 33608.481
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 13:
553 goes into 700 1 times with a remainder of 147.
Put 1 as the next digit of the answer. 
Result so far: 33608.48101
Subtract 553 from 700 to get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Going ahead to step 14:
The number 553 fits into 1470 2 times, leaving a remainder of 364.
Write down 2 as next digit of the result. 
Result so far: 33608.481012
If we take 1106 away from 1470, we end up with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Let's proceed to step 15:
If we divide 3640 by 553, we get 6 and a remainder of 322.
Write down 6 as next digit of the result. 
Result so far: 33608.4810126
The remainder is 322 after subtracting 3318 from 3640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

On to step 16:
When dividing 3220 by 553, we get 5 with a remainder of 455.
The next digit of our result is 5. 
Result so far: 33608.48101265
The remainder is 455 after subtracting 2765 from 3220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Our division results in 33608.48101265 with a remaining 4.55e-07.