We divide 780865 by 1
The aim is to understand the frequency of 1 in 780865.

Moving on to step 1:
When dividing 7 by 1, we get 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 7 from 7, we get 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 1

Step 2:
1 goes into 8 8 times with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
The remainder is 0 after subtracting 8 from 8.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 1

On to step 3:
1 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 780.0
Subtract 0 from 0 to get 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 1

Step 4:
When dividing 8 by 1, we get 8 with a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 7808.0
Subtracting 8 from 8 leaves us with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 1

Going ahead to step 5:
6 divided by 1 is 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 78086.0
If we subtract 6 from 6, we get 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 1

Let's proceed to step 6:
5 divided by 1 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 780865.0
If we take 5 away from 5, 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 7:
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: 780865.0
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.

Advancing to step 8:
1 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 780865.0
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 result is 780865.0 with a remainder of 0.0.