Let's divide 76571 by 1
The aim is to understand the frequency of 1 in 76571.

Step 1:
The number 1 fits into 7 7 times, leaving a remainder of 0.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 7 from 7, we get 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 1

Let's proceed to step 2:
When dividing 6 by 1, we get 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 76.0
If we subtract 6 from 6, we get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 1

On to step 3:
If we divide 5 by 1, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 765.0
If we take 5 away from 5, we end up with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 1

Moving on to step 4:
7 divided by 1 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 7657.0
If we subtract 7 from 7, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

On to step 5:
If we divide 1 by 1, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 76571.0
Deduct 1 from 1 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.

On to step 6:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 76571.0
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.

On to step 7:
If we divide 0 by 1, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 76571.0
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.

After the division, we end up with 76571.0 and a remainder of 0.0.