We're dividing 87035943 by 1 
The aim is to understand the frequency of 1 in 87035943.

Step 1:
1 can be fit into 8 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 8 from 8 to get 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 1

On to step 2:
The number 1 fits into 7 7 times, leaving a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 87.0
The remainder is 0 after subtracting 7 from 7.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 1

Step 3:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 870.0
The remainder is 0 after subtracting 0 from 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 1

Going ahead to step 4:
The number 1 fits into 3 3 times, leaving a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 8703.0
If we take 3 away from 3, we end up with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 1

On to step 5:
When dividing 5 by 1, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 87035.0
The remainder is 0 after subtracting 5 from 5.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 1

On to step 6:
9 divided by 1 is 9 with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 870359.0
Subtract 9 from 9 to get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Advancing to step 7:
1 goes into 4 4 times with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 8703594.0
The remainder is 0 after subtracting 4 from 4.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 1

Advancing to step 8:
1 goes into 3 3 times with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 87035943.0
If we subtract 3 from 3, 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:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 87035943.0
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.

Moving on to step 10:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 87035943.0
The remainder is 0 after subtracting 0 from 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 87035943.0, with a leftover of 0.0.