We look at the division of 55030188 by 251 
The aim is to understand the frequency of 251 in 55030188.

Going ahead to step 1:
251 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 251

On to step 2:
When dividing 55 by 251, we get 0 with a remainder of 55.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Grab the next digit (0) from the dividend, add it to 55, then carry on: 550 / 251

Advancing to step 3:
251 goes into 550 2 times with a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 502 from 550, we get 48.
Grab the next digit (3) from the dividend, add it to 48, then carry on: 483 / 251

Going ahead to step 4:
251 can be fit into 483 1 times, resulting in a remainder of 232.
The next digit of our result is 1. 
Result so far: 21.0
If we subtract 251 from 483, we get 232.
Include the next digit (0) from the dividend after 232, then repeat: 2320 / 251

Advancing to step 5:
2320 divided by 251 is 9 with a remainder of 61.
Write down 9 as next digit of the result. 
Result so far: 219.0
If we take 2259 away from 2320, we end up with 61.
Fetch the next digit (1) from the dividend, attach it to 61 and continue: 611 / 251

Let's proceed to step 6:
611 divided by 251 is 2 with a remainder of 109.
Use 2 as the next digit of our solution. 
Result so far: 2192.0
Subtract 502 from 611 to get 109.
Include the next digit (8) from the dividend after 109, then repeat: 1098 / 251

Step 7:
When dividing 1098 by 251, we get 4 with a remainder of 94.
The next digit of our result is 4. 
Result so far: 21924.0
The remainder is 94 after subtracting 1004 from 1098.
Take the next digit (8) from the dividend and append it to 94, then repeat: 948 / 251

On to step 8:
When dividing 948 by 251, we get 3 with a remainder of 195.
The next digit of our result is 3. 
Result so far: 219243.0
If we subtract 753 from 948, we get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Going ahead to step 9:
251 goes into 1950 7 times with a remainder of 193.
Record the quotient 7 as the next digit in the result. 
Result so far: 219243.7
The remainder is 193 after subtracting 1757 from 1950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Moving on to step 10:
When dividing 1930 by 251, we get 7 with a remainder of 173.
Record the quotient 7 as the next digit in the result. 
Result so far: 219243.77
Subtract 1757 from 1930 to get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

The quotient of the division is 219243.77, and the remainder is 0.173.