Let's divide 3189665 by 909
The aim is to understand the frequency of 909 in 3189665.

Advancing to step 1:
If we divide 3 by 909, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 909

On to step 2:
909 can be fit into 31 0 times, resulting in a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Append the next digit (8) from the dividend to 31 and continue with: 318 / 909

Moving on to step 3:
When dividing 318 by 909, we get 0 with a remainder of 318.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 318, we get 318.
Append the next digit (9) from the dividend to 318 and continue with: 3189 / 909

Let's proceed to step 4:
3189 divided by 909 is 3 with a remainder of 462.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 2727 away from 3189, we end up with 462.
Include the next digit (6) from the dividend after 462, then repeat: 4626 / 909

Let's proceed to step 5:
909 can be fit into 4626 5 times, resulting in a remainder of 81.
Use 5 as the next digit of our solution. 
Result so far: 35.0
The remainder is 81 after subtracting 4545 from 4626.
Fetch the next digit (6) from the dividend, attach it to 81 and continue: 816 / 909

Step 6:
The number 909 fits into 816 0 times, leaving a remainder of 816.
The next digit of our result is 0. 
Result so far: 350.0
Subtract 0 from 816 to get 816.
Grab the next digit (5) from the dividend, add it to 816, then carry on: 8165 / 909

Going ahead to step 7:
If we divide 8165 by 909, we get 8 and a remainder of 893.
Record the quotient 8 as the next digit in the result. 
Result so far: 3508.0
Subtracting 7272 from 8165 leaves us with 893.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8930, and continue the process.

On to step 8:
When dividing 8930 by 909, we get 9 with a remainder of 749.
Write down 9 as next digit of the result. 
Result so far: 3508.9
The remainder is 749 after subtracting 8181 from 8930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Step 9:
909 can be fit into 7490 8 times, resulting in a remainder of 218.
The number 8 becomes the next digit in our result. 
Result so far: 3508.98
Deduct 7272 from 7490 and we're left with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Advancing to step 10:
If we divide 2180 by 909, we get 2 and a remainder of 362.
Write down 2 as next digit of the result. 
Result so far: 3508.982
If we subtract 1818 from 2180, we get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Going ahead to step 11:
The number 909 fits into 3620 3 times, leaving a remainder of 893.
Put 3 as the next digit of the answer. 
Result so far: 3508.9823
If we take 2727 away from 3620, we end up with 893.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8930, and continue the process.

Let's proceed to step 12:
When dividing 8930 by 909, we get 9 with a remainder of 749.
The next digit of our result is 9. 
Result so far: 3508.98239
If we take 8181 away from 8930, we end up with 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Going ahead to step 13:
909 goes into 7490 8 times with a remainder of 218.
Write down 8 as next digit of the result. 
Result so far: 3508.982398
Subtract 7272 from 7490 to get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

On to step 14:
If we divide 2180 by 909, we get 2 and a remainder of 362.
The next digit of our result is 2. 
Result so far: 3508.9823982
If we take 1818 away from 2180, we end up with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Advancing to step 15:
The number 909 fits into 3620 3 times, leaving a remainder of 893.
The number 3 becomes the next digit in our result. 
Result so far: 3508.98239823
The remainder is 893 after subtracting 2727 from 3620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8930, and continue the process.

After the division, we end up with 3508.98239823 and a remainder of 8.93e-07.