We're dividing 66670507 by 1 
The aim is to understand the frequency of 1 in 66670507.

Let's proceed to step 1:
The number 1 fits into 6 6 times, leaving a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 6 from 6, we get 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 1

Step 2:
When dividing 6 by 1, we get 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 66.0
If we take 6 away from 6, we end up with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 1

Advancing to step 3:
If we divide 6 by 1, we get 6 and a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 666.0
If we take 6 away from 6, we end up with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 1

Let's proceed to step 4:
If we divide 7 by 1, we get 7 and a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 6667.0
If we subtract 7 from 7, we get 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 1

Let's proceed to step 5:
1 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 66670.0
Deduct 0 from 0 and we're left with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 1

Let's proceed to step 6:
The number 1 fits into 5 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 666705.0
Subtracting 5 from 5 leaves us with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 1

Going ahead to step 7:
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: 6667050.0
The remainder is 0 after subtracting 0 from 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 1

Advancing to step 8:
If we divide 7 by 1, we get 7 and a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 66670507.0
The remainder is 0 after subtracting 7 from 7.
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 9:
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: 66670507.0
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.

On to step 10:
0 divided by 1 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 66670507.0
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 quotient of the division is 66670507.0, and the remainder is 0.0.