378969 ÷ 1 
The aim is to understand the frequency of 1 in 378969.

Let's proceed to step 1:
1 goes into 3 3 times with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 3 from 3, we get 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 1

Let's proceed to step 2:
1 goes into 7 7 times with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
Deduct 7 from 7 and we're left with 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 1

Going ahead to step 3:
If we divide 8 by 1, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 378.0
The remainder is 0 after subtracting 8 from 8.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 1

Step 4:
1 can be fit into 9 9 times, resulting in a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 3789.0
The remainder is 0 after subtracting 9 from 9.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 1

On to step 5:
If we divide 6 by 1, we get 6 and a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 37896.0
If we take 6 away from 6, we end up with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 1

Moving on to step 6:
1 can be fit into 9 9 times, resulting in a remainder of 0.
The next digit of our result is 9. 
Result so far: 378969.0
The remainder is 0 after subtracting 9 from 9.
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 7:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 378969.0
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.

Let's proceed to step 8:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 378969.0
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.

In conclusion, the division gives 378969.0 with a balance of 0.0.