We're dividing 40430861 by 939 
The aim is to understand the frequency of 939 in 40430861.

On to step 1:
4 divided by 939 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 939

Advancing to step 2:
If we divide 40 by 939, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 40 leaves us with 40.
Grab the next digit (4) from the dividend, add it to 40, then carry on: 404 / 939

Step 3:
939 can be fit into 404 0 times, resulting in a remainder of 404.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 404 to get 404.
Grab the next digit (3) from the dividend, add it to 404, then carry on: 4043 / 939

On to step 4:
939 can be fit into 4043 4 times, resulting in a remainder of 287.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 287 after subtracting 3756 from 4043.
Fetch the next digit (0) from the dividend, attach it to 287 and continue: 2870 / 939

Let's proceed to step 5:
The number 939 fits into 2870 3 times, leaving a remainder of 53.
The next digit of our result is 3. 
Result so far: 43.0
If we subtract 2817 from 2870, we get 53.
Append the next digit (8) from the dividend to 53 and continue with: 538 / 939

Step 6:
The number 939 fits into 538 0 times, leaving a remainder of 538.
The number 0 becomes the next digit in our result. 
Result so far: 430.0
The remainder is 538 after subtracting 0 from 538.
Bring next digit (6) of the dividend behind the 538 and repeat the process: 5386 / 939

Moving on to step 7:
939 goes into 5386 5 times with a remainder of 691.
Record the quotient 5 as the next digit in the result. 
Result so far: 4305.0
Subtracting 4695 from 5386 leaves us with 691.
Include the next digit (1) from the dividend after 691, then repeat: 6911 / 939

Step 8:
6911 divided by 939 is 7 with a remainder of 338.
Put 7 as the next digit of the answer. 
Result so far: 43057.0
Subtracting 6573 from 6911 leaves us with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Step 9:
3380 divided by 939 is 3 with a remainder of 563.
Put 3 as the next digit of the answer. 
Result so far: 43057.3
If we take 2817 away from 3380, we end up with 563.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5630, and continue the process.

Advancing to step 10:
939 goes into 5630 5 times with a remainder of 935.
The next digit of our result is 5. 
Result so far: 43057.35
The remainder is 935 after subtracting 4695 from 5630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9350, and continue the process.

On to step 11:
If we divide 9350 by 939, we get 9 and a remainder of 899.
Put 9 as the next digit of the answer. 
Result so far: 43057.359
Subtracting 8451 from 9350 leaves us with 899.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8990, and continue the process.

Let's proceed to step 12:
If we divide 8990 by 939, we get 9 and a remainder of 539.
Write down 9 as next digit of the result. 
Result so far: 43057.3599
The remainder is 539 after subtracting 8451 from 8990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5390, and continue the process.

In conclusion, the division gives 43057.3599 with a balance of 0.00539.