Let's divide 3830850 by 909
The aim is to understand the frequency of 909 in 3830850.

Step 1:
When dividing 3 by 909, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 909

On to step 2:
909 can be fit into 38 0 times, resulting in a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 38, we end up with 38.
Include the next digit (3) from the dividend after 38, then repeat: 383 / 909

Let's proceed to step 3:
383 divided by 909 is 0 with a remainder of 383.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 383 to get 383.
Bring next digit (0) of the dividend behind the 383 and repeat the process: 3830 / 909

On to step 4:
909 goes into 3830 4 times with a remainder of 194.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 3636 from 3830 and we're left with 194.
Fetch the next digit (8) from the dividend, attach it to 194 and continue: 1948 / 909

On to step 5:
The number 909 fits into 1948 2 times, leaving a remainder of 130.
Put 2 as the next digit of the answer. 
Result so far: 42.0
The remainder is 130 after subtracting 1818 from 1948.
Grab the next digit (5) from the dividend, add it to 130, then carry on: 1305 / 909

Going ahead to step 6:
909 can be fit into 1305 1 times, resulting in a remainder of 396.
The next digit of our result is 1. 
Result so far: 421.0
Subtract 909 from 1305 to get 396.
Include the next digit (0) from the dividend after 396, then repeat: 3960 / 909

Moving on to step 7:
When dividing 3960 by 909, we get 4 with a remainder of 324.
The next digit of our result is 4. 
Result so far: 4214.0
Deduct 3636 from 3960 and we're left with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Going ahead to step 8:
The number 909 fits into 3240 3 times, leaving a remainder of 513.
The next digit of our result is 3. 
Result so far: 4214.3
If we subtract 2727 from 3240, we get 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Step 9:
When dividing 5130 by 909, we get 5 with a remainder of 585.
The next digit of our result is 5. 
Result so far: 4214.35
Subtracting 4545 from 5130 leaves us with 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Let's proceed to step 10:
If we divide 5850 by 909, we get 6 and a remainder of 396.
Put 6 as the next digit of the answer. 
Result so far: 4214.356
If we subtract 5454 from 5850, we get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Let's proceed to step 11:
If we divide 3960 by 909, we get 4 and a remainder of 324.
The next digit of our result is 4. 
Result so far: 4214.3564
The remainder is 324 after subtracting 3636 from 3960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Going ahead to step 12:
3240 divided by 909 is 3 with a remainder of 513.
Record the quotient 3 as the next digit in the result. 
Result so far: 4214.35643
Subtract 2727 from 3240 to get 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

On to step 13:
The number 909 fits into 5130 5 times, leaving a remainder of 585.
Record the quotient 5 as the next digit in the result. 
Result so far: 4214.356435
Subtracting 4545 from 5130 leaves us with 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Moving on to step 14:
909 can be fit into 5850 6 times, resulting in a remainder of 396.
Write down 6 as next digit of the result. 
Result so far: 4214.3564356
If we take 5454 away from 5850, we end up with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Advancing to step 15:
909 goes into 3960 4 times with a remainder of 324.
Put 4 as the next digit of the answer. 
Result so far: 4214.35643564
The remainder is 324 after subtracting 3636 from 3960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

The final result is 4214.35643564 with a remainder of 3.24e-07.