We look at the division of 840401 by 55 
The aim is to understand the frequency of 55 in 840401.

Let's proceed to step 1:
If we divide 8 by 55, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 55

Step 2:
When dividing 84 by 55, we get 1 with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 55 away from 84, we end up with 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 55

Let's proceed to step 3:
When dividing 290 by 55, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we take 275 away from 290, we end up with 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 55

Let's proceed to step 4:
When dividing 154 by 55, we get 2 with a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 152.0
Subtracting 110 from 154 leaves us with 44.
Grab the next digit (0) from the dividend, add it to 44, then carry on: 440 / 55

Let's proceed to step 5:
55 can be fit into 440 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 1528.0
If we subtract 440 from 440, we get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 55

Let's proceed to step 6:
When dividing 1 by 55, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 15280.0
Subtract 0 from 1 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
55 can be fit into 10 0 times, resulting in a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 15280.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
55 can be fit into 100 1 times, resulting in a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 15280.01
Subtract 55 from 100 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 9:
55 goes into 450 8 times with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 15280.018
If we subtract 440 from 450, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
55 can be fit into 100 1 times, resulting in a remainder of 45.
Put 1 as the next digit of the answer. 
Result so far: 15280.0181
The remainder is 45 after subtracting 55 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 11:
55 goes into 450 8 times with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 15280.01818
The remainder is 10 after subtracting 440 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
100 divided by 55 is 1 with a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 15280.018181
Subtract 55 from 100 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 13:
450 divided by 55 is 8 with a remainder of 10.
The next digit of our result is 8. 
Result so far: 15280.0181818
The remainder is 10 after subtracting 440 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 14:
55 goes into 100 1 times with a remainder of 45.
Use 1 as the next digit of our solution. 
Result so far: 15280.01818181
Deduct 55 from 100 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

After the division, we end up with 15280.01818181 and a remainder of 4.5e-08.