We're dividing 91611444 by 1 
The aim is to understand the frequency of 1 in 91611444.

On to step 1:
When dividing 9 by 1, we get 9 with a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtracting 9 from 9 leaves us with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Advancing to step 2:
When dividing 1 by 1, we get 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 91.0
If we subtract 1 from 1, we get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 1

Let's proceed to step 3:
When dividing 6 by 1, we get 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 916.0
Subtract 6 from 6 to get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

On to step 4:
If we divide 1 by 1, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 9161.0
Subtracting 1 from 1 leaves us with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 1

Moving on to step 5:
If we divide 1 by 1, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 91611.0
Deduct 1 from 1 and we're left with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Moving on to step 6:
1 can be fit into 4 4 times, resulting in a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 916114.0
Subtract 4 from 4 to get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 1

Step 7:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 9161144.0
If we subtract 4 from 4, we get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Going ahead to step 8:
The number 1 fits into 4 4 times, leaving a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 91611444.0
Subtract 4 from 4 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.

Moving on to step 9:
1 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 91611444.0
Subtract 0 from 0 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.

Going ahead to step 10:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 91611444.0
If we subtract 0 from 0, we 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.

The final result is 91611444.0 with a remainder of 0.0.