We divide 131400 by 1
The aim is to understand the frequency of 1 in 131400.

Moving on to step 1:
1 can be fit into 1 1 times, resulting in a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 1 from 1 and we're left with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 1

Advancing to step 2:
When dividing 3 by 1, we get 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 3 from 3, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 1

Step 3:
When dividing 1 by 1, we get 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 131.0
The remainder is 0 after subtracting 1 from 1.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Going ahead to step 4:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 1314.0
Deduct 4 from 4 and we're left with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 1

Moving on to step 5:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 13140.0
If we subtract 0 from 0, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Step 6:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 131400.0
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.

Going ahead to step 7:
When dividing 0 by 1, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 131400.0
The remainder is 0 after subtracting 0 from 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.
Use 0 as the next digit of our solution. 
Result so far: 131400.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 131400.0 with a remaining 0.0.