55911881 ÷ 158 
The aim is to understand the frequency of 158 in 55911881.

Moving on to step 1:
The number 158 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 158

Advancing to step 2:
158 can be fit into 55 0 times, resulting in a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 55 leaves us with 55.
Grab the next digit (9) from the dividend, add it to 55, then carry on: 559 / 158

Going ahead to step 3:
The number 158 fits into 559 3 times, leaving a remainder of 85.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 474 from 559 and we're left with 85.
Take the next digit (1) from the dividend and append it to 85, then repeat: 851 / 158

Going ahead to step 4:
The number 158 fits into 851 5 times, leaving a remainder of 61.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
The remainder is 61 after subtracting 790 from 851.
Append the next digit (1) from the dividend to 61 and continue with: 611 / 158

Let's proceed to step 5:
158 can be fit into 611 3 times, resulting in a remainder of 137.
The next digit of our result is 3. 
Result so far: 353.0
Subtracting 474 from 611 leaves us with 137.
Take the next digit (8) from the dividend and append it to 137, then repeat: 1378 / 158

Going ahead to step 6:
If we divide 1378 by 158, we get 8 and a remainder of 114.
The next digit of our result is 8. 
Result so far: 3538.0
If we take 1264 away from 1378, we end up with 114.
Take the next digit (8) from the dividend and append it to 114, then repeat: 1148 / 158

On to step 7:
1148 divided by 158 is 7 with a remainder of 42.
The next digit of our result is 7. 
Result so far: 35387.0
Subtract 1106 from 1148 to get 42.
Fetch the next digit (1) from the dividend, attach it to 42 and continue: 421 / 158

Moving on to step 8:
158 can be fit into 421 2 times, resulting in a remainder of 105.
Use 2 as the next digit of our solution. 
Result so far: 353872.0
The remainder is 105 after subtracting 316 from 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 9:
158 can be fit into 1050 6 times, resulting in a remainder of 102.
Use 6 as the next digit of our solution. 
Result so far: 353872.6
If we subtract 948 from 1050, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 10:
The number 158 fits into 1020 6 times, leaving a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 353872.66
If we take 948 away from 1020, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 353872.66 with a remainder of 0.072.