We look at the division of 136091 by 1 
The aim is to understand the frequency of 1 in 136091.

Step 1:
1 divided by 1 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 1 away from 1, we end up with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 1

Let's proceed to step 2:
The number 1 fits into 3 3 times, leaving a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 0 after subtracting 3 from 3.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 1

Step 3:
The number 1 fits into 6 6 times, leaving a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 136.0
Subtracting 6 from 6 leaves us with 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 1

Step 4:
0 divided by 1 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1360.0
The remainder is 0 after subtracting 0 from 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 1

Going ahead to step 5:
If we divide 9 by 1, we get 9 and a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 13609.0
The remainder is 0 after subtracting 9 from 9.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 1

Step 6:
The number 1 fits into 1 1 times, leaving a remainder of 0.
The next digit of our result is 1. 
Result so far: 136091.0
Subtract 1 from 1 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
1 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 136091.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
1 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 136091.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 136091.0, and the remainder is 0.0.