We look at the division of 873706 by 55 
The aim is to understand the frequency of 55 in 873706.

On to step 1:
55 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 55

On to step 2:
If we divide 87 by 55, we get 1 and a remainder of 32.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 32 after subtracting 55 from 87.
Append the next digit (3) from the dividend to 32 and continue with: 323 / 55

Moving on to step 3:
55 goes into 323 5 times with a remainder of 48.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we take 275 away from 323, we end up with 48.
Grab the next digit (7) from the dividend, add it to 48, then carry on: 487 / 55

Going ahead to step 4:
If we divide 487 by 55, we get 8 and a remainder of 47.
Write down 8 as next digit of the result. 
Result so far: 158.0
If we subtract 440 from 487, we get 47.
Take the next digit (0) from the dividend and append it to 47, then repeat: 470 / 55

Going ahead to step 5:
The number 55 fits into 470 8 times, leaving a remainder of 30.
The next digit of our result is 8. 
Result so far: 1588.0
If we subtract 440 from 470, we get 30.
Grab the next digit (6) from the dividend, add it to 30, then carry on: 306 / 55

Advancing to step 6:
55 goes into 306 5 times with a remainder of 31.
Use 5 as the next digit of our solution. 
Result so far: 15885.0
Subtract 275 from 306 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 7:
If we divide 310 by 55, we get 5 and a remainder of 35.
The next digit of our result is 5. 
Result so far: 15885.5
If we take 275 away from 310, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 8:
If we divide 350 by 55, we get 6 and a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 15885.56
Subtracting 330 from 350 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.

Advancing to step 9:
The number 55 fits into 200 3 times, leaving a remainder of 35.
Use 3 as the next digit of our solution. 
Result so far: 15885.563
The remainder is 35 after subtracting 165 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 10:
The number 55 fits into 350 6 times, leaving a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 15885.5636
If we take 330 away from 350, we end up 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.

Moving on to step 11:
When dividing 200 by 55, we get 3 with a remainder of 35.
Write down 3 as next digit of the result. 
Result so far: 15885.56363
Deduct 165 from 200 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 12:
When dividing 350 by 55, we get 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 15885.563636
If we take 330 away from 350, we end up 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.

Advancing to step 13:
55 can be fit into 200 3 times, resulting in a remainder of 35.
The number 3 becomes the next digit in our result. 
Result so far: 15885.5636363
If we subtract 165 from 200, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 14:
55 goes into 350 6 times with a remainder of 20.
The next digit of our result is 6. 
Result so far: 15885.56363636
If we subtract 330 from 350, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 15885.56363636, with a leftover of 2e-08.