39591242 ÷ 509 
The aim is to understand the frequency of 509 in 39591242.

Advancing to step 1:
The number 509 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 509

Advancing to step 2:
509 can be fit into 39 0 times, resulting in a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Grab the next digit (5) from the dividend, add it to 39, then carry on: 395 / 509

Let's proceed to step 3:
395 divided by 509 is 0 with a remainder of 395.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 395, we end up with 395.
Append the next digit (9) from the dividend to 395 and continue with: 3959 / 509

Step 4:
3959 divided by 509 is 7 with a remainder of 396.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 3563 from 3959 and we're left with 396.
Take the next digit (1) from the dividend and append it to 396, then repeat: 3961 / 509

Advancing to step 5:
509 can be fit into 3961 7 times, resulting in a remainder of 398.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
The remainder is 398 after subtracting 3563 from 3961.
Take the next digit (2) from the dividend and append it to 398, then repeat: 3982 / 509

Going ahead to step 6:
When dividing 3982 by 509, we get 7 with a remainder of 419.
Record the quotient 7 as the next digit in the result. 
Result so far: 777.0
Subtracting 3563 from 3982 leaves us with 419.
Grab the next digit (4) from the dividend, add it to 419, then carry on: 4194 / 509

Advancing to step 7:
509 goes into 4194 8 times with a remainder of 122.
Write down 8 as next digit of the result. 
Result so far: 7778.0
The remainder is 122 after subtracting 4072 from 4194.
Take the next digit (2) from the dividend and append it to 122, then repeat: 1222 / 509

Moving on to step 8:
The number 509 fits into 1222 2 times, leaving a remainder of 204.
The next digit of our result is 2. 
Result so far: 77782.0
Deduct 1018 from 1222 and we're left with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Let's proceed to step 9:
The number 509 fits into 2040 4 times, leaving a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 77782.4
Deduct 2036 from 2040 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
When dividing 40 by 509, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 77782.4
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
If we divide 400 by 509, we get 0 and a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 77782.4
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The quotient of the division is 77782.4, and the remainder is 0.04.