307481 ÷ 1 
The aim is to understand the frequency of 1 in 307481.

Step 1:
1 can be fit into 3 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 3 from 3 to get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 1

Moving on to step 2:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 30.0
If we subtract 0 from 0, we get 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 1

Advancing to step 3:
7 divided by 1 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 307.0
Deduct 7 from 7 and we're left with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 1

Moving on to step 4:
1 can be fit into 4 4 times, resulting in a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 3074.0
Deduct 4 from 4 and we're left with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 1

Moving on to step 5:
When dividing 8 by 1, we get 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 30748.0
Subtracting 8 from 8 leaves us with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Going ahead to step 6:
When dividing 1 by 1, we get 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 307481.0
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.

Advancing to step 7:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 307481.0
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.

Going ahead to step 8:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 307481.0
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 307481.0 and a remainder of 0.0.