We're dividing 90594441 by 1 
The aim is to understand the frequency of 1 in 90594441.

Moving 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.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 1

Let's proceed to step 2:
When dividing 0 by 1, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 90.0
If we take 0 away from 0, we end up with 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 1

Moving on to step 3:
If we divide 5 by 1, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 905.0
The remainder is 0 after subtracting 5 from 5.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 1

Moving on to step 4:
When dividing 9 by 1, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 9059.0
Deduct 9 from 9 and we're left with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 1

Let's proceed to step 5:
1 goes into 4 4 times with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 90594.0
If we subtract 4 from 4, we get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 1

Going ahead to step 6:
1 goes into 4 4 times with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 905944.0
Subtract 4 from 4 to get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

On to step 7:
If we divide 4 by 1, we get 4 and a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 9059444.0
If we take 4 away from 4, we end up with 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 1

On to step 8:
1 can be fit into 1 1 times, resulting in a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 90594441.0
If we subtract 1 from 1, 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.

Advancing to step 9:
If we divide 0 by 1, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 90594441.0
If we take 0 away from 0, we end up 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 10:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 90594441.0
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.

The final outcome is 90594441.0, with a leftover of 0.0.