We're dividing 55086791 by 953 
The aim is to understand the frequency of 953 in 55086791.

Advancing to step 1:
The number 953 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 953

Moving on to step 2:
953 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Include the next digit (0) from the dividend after 55, then repeat: 550 / 953

On to step 3:
550 divided by 953 is 0 with a remainder of 550.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 550 and we're left with 550.
Fetch the next digit (8) from the dividend, attach it to 550 and continue: 5508 / 953

Advancing to step 4:
953 goes into 5508 5 times with a remainder of 743.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 4765 from 5508 and we're left with 743.
Grab the next digit (6) from the dividend, add it to 743, then carry on: 7436 / 953

On to step 5:
7436 divided by 953 is 7 with a remainder of 765.
Write down 7 as next digit of the result. 
Result so far: 57.0
Subtracting 6671 from 7436 leaves us with 765.
Grab the next digit (7) from the dividend, add it to 765, then carry on: 7657 / 953

Advancing to step 6:
When dividing 7657 by 953, we get 8 with a remainder of 33.
Record the quotient 8 as the next digit in the result. 
Result so far: 578.0
The remainder is 33 after subtracting 7624 from 7657.
Take the next digit (9) from the dividend and append it to 33, then repeat: 339 / 953

Step 7:
339 divided by 953 is 0 with a remainder of 339.
Put 0 as the next digit of the answer. 
Result so far: 5780.0
Subtracting 0 from 339 leaves us with 339.
Append the next digit (1) from the dividend to 339 and continue with: 3391 / 953

Advancing to step 8:
3391 divided by 953 is 3 with a remainder of 532.
Record the quotient 3 as the next digit in the result. 
Result so far: 57803.0
If we subtract 2859 from 3391, we get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

On to step 9:
If we divide 5320 by 953, we get 5 and a remainder of 555.
Use 5 as the next digit of our solution. 
Result so far: 57803.5
If we take 4765 away from 5320, we end up with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

Advancing to step 10:
The number 953 fits into 5550 5 times, leaving a remainder of 785.
The next digit of our result is 5. 
Result so far: 57803.55
The remainder is 785 after subtracting 4765 from 5550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7850, and continue the process.

Our division results in 57803.55 with a remaining 0.785.