We look at the division of 55481638 by 423 
The aim is to understand the frequency of 423 in 55481638.

Let's proceed to step 1:
The number 423 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 423

Let's proceed to step 2:
55 divided by 423 is 0 with a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 55 leaves us with 55.
Fetch the next digit (4) from the dividend, attach it to 55 and continue: 554 / 423

Going ahead to step 3:
423 can be fit into 554 1 times, resulting in a remainder of 131.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 423 from 554 and we're left with 131.
Fetch the next digit (8) from the dividend, attach it to 131 and continue: 1318 / 423

Let's proceed to step 4:
If we divide 1318 by 423, we get 3 and a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtract 1269 from 1318 to get 49.
Bring next digit (1) of the dividend behind the 49 and repeat the process: 491 / 423

On to step 5:
If we divide 491 by 423, we get 1 and a remainder of 68.
Write down 1 as next digit of the result. 
Result so far: 131.0
The remainder is 68 after subtracting 423 from 491.
Bring next digit (6) of the dividend behind the 68 and repeat the process: 686 / 423

On to step 6:
When dividing 686 by 423, we get 1 with a remainder of 263.
Record the quotient 1 as the next digit in the result. 
Result so far: 1311.0
Subtracting 423 from 686 leaves us with 263.
Bring next digit (3) of the dividend behind the 263 and repeat the process: 2633 / 423

Advancing to step 7:
When dividing 2633 by 423, we get 6 with a remainder of 95.
Use 6 as the next digit of our solution. 
Result so far: 13116.0
If we take 2538 away from 2633, we end up with 95.
Grab the next digit (8) from the dividend, add it to 95, then carry on: 958 / 423

Step 8:
958 divided by 423 is 2 with a remainder of 112.
Write down 2 as next digit of the result. 
Result so far: 131162.0
If we take 846 away from 958, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

On to step 9:
If we divide 1120 by 423, we get 2 and a remainder of 274.
Record the quotient 2 as the next digit in the result. 
Result so far: 131162.2
Subtracting 846 from 1120 leaves us with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Moving on to step 10:
2740 divided by 423 is 6 with a remainder of 202.
Put 6 as the next digit of the answer. 
Result so far: 131162.26
If we subtract 2538 from 2740, we get 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Step 11:
When dividing 2020 by 423, we get 4 with a remainder of 328.
Put 4 as the next digit of the answer. 
Result so far: 131162.264
If we subtract 1692 from 2020, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 12:
3280 divided by 423 is 7 with a remainder of 319.
Write down 7 as next digit of the result. 
Result so far: 131162.2647
If we take 2961 away from 3280, we end up with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

On to step 13:
The number 423 fits into 3190 7 times, leaving a remainder of 229.
Write down 7 as next digit of the result. 
Result so far: 131162.26477
Deduct 2961 from 3190 and we're left with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Our division results in 131162.26477 with a remaining 0.000229.