55508391 ÷ 187 
The aim is to understand the frequency of 187 in 55508391.

Step 1:
5 divided by 187 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 187

Moving on to step 2:
The number 187 fits into 55 0 times, leaving a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Fetch the next digit (5) from the dividend, attach it to 55 and continue: 555 / 187

Going ahead to step 3:
If we divide 555 by 187, we get 2 and a remainder of 181.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 181 after subtracting 374 from 555.
Bring next digit (0) of the dividend behind the 181 and repeat the process: 1810 / 187

Let's proceed to step 4:
1810 divided by 187 is 9 with a remainder of 127.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we subtract 1683 from 1810, we get 127.
Bring next digit (8) of the dividend behind the 127 and repeat the process: 1278 / 187

On to step 5:
187 goes into 1278 6 times with a remainder of 156.
Record the quotient 6 as the next digit in the result. 
Result so far: 296.0
If we subtract 1122 from 1278, we get 156.
Grab the next digit (3) from the dividend, add it to 156, then carry on: 1563 / 187

Advancing to step 6:
1563 divided by 187 is 8 with a remainder of 67.
The next digit of our result is 8. 
Result so far: 2968.0
The remainder is 67 after subtracting 1496 from 1563.
Include the next digit (9) from the dividend after 67, then repeat: 679 / 187

Moving on to step 7:
187 can be fit into 679 3 times, resulting in a remainder of 118.
Put 3 as the next digit of the answer. 
Result so far: 29683.0
Subtracting 561 from 679 leaves us with 118.
Include the next digit (1) from the dividend after 118, then repeat: 1181 / 187

On to step 8:
If we divide 1181 by 187, we get 6 and a remainder of 59.
Put 6 as the next digit of the answer. 
Result so far: 296836.0
Subtracting 1122 from 1181 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 9:
187 can be fit into 590 3 times, resulting in a remainder of 29.
Record the quotient 3 as the next digit in the result. 
Result so far: 296836.3
If we subtract 561 from 590, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 10:
The number 187 fits into 290 1 times, leaving a remainder of 103.
Record the quotient 1 as the next digit in the result. 
Result so far: 296836.31
Subtract 187 from 290 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Moving on to step 11:
If we divide 1030 by 187, we get 5 and a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 296836.315
If we take 935 away from 1030, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 12:
If we divide 950 by 187, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 296836.3155
If we take 935 away from 950, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 296836.3155, with a leftover of 0.00015.