We look at the division of 1139737 by 909 
The aim is to understand the frequency of 909 in 1139737.

Going ahead to step 1:
1 divided by 909 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 909

On to step 2:
11 divided by 909 is 0 with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 11 to get 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 909

Going ahead to step 3:
If we divide 113 by 909, we get 0 and a remainder of 113.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 113 to get 113.
Append the next digit (9) from the dividend to 113 and continue with: 1139 / 909

Let's proceed to step 4:
1139 divided by 909 is 1 with a remainder of 230.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 909 from 1139 leaves us with 230.
Take the next digit (7) from the dividend and append it to 230, then repeat: 2307 / 909

Let's proceed to step 5:
The number 909 fits into 2307 2 times, leaving a remainder of 489.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 1818 from 2307 leaves us with 489.
Bring next digit (3) of the dividend behind the 489 and repeat the process: 4893 / 909

Step 6:
909 goes into 4893 5 times with a remainder of 348.
Use 5 as the next digit of our solution. 
Result so far: 125.0
Deduct 4545 from 4893 and we're left with 348.
Include the next digit (7) from the dividend after 348, then repeat: 3487 / 909

Going ahead to step 7:
3487 divided by 909 is 3 with a remainder of 760.
Put 3 as the next digit of the answer. 
Result so far: 1253.0
The remainder is 760 after subtracting 2727 from 3487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

On to step 8:
909 can be fit into 7600 8 times, resulting in a remainder of 328.
Write down 8 as next digit of the result. 
Result so far: 1253.8
If we take 7272 away from 7600, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Moving on to step 9:
When dividing 3280 by 909, we get 3 with a remainder of 553.
The number 3 becomes the next digit in our result. 
Result so far: 1253.83
Subtract 2727 from 3280 to get 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Advancing to step 10:
When dividing 5530 by 909, we get 6 with a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 1253.836
Deduct 5454 from 5530 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 11:
The number 909 fits into 760 0 times, leaving a remainder of 760.
The next digit of our result is 0. 
Result so far: 1253.836
Subtracting 0 from 760 leaves us with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Let's proceed to step 12:
If we divide 7600 by 909, we get 8 and a remainder of 328.
Put 8 as the next digit of the answer. 
Result so far: 1253.83608
If we take 7272 away from 7600, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 13:
909 can be fit into 3280 3 times, resulting in a remainder of 553.
Put 3 as the next digit of the answer. 
Result so far: 1253.836083
If we take 2727 away from 3280, we end up with 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Let's proceed to step 14:
When dividing 5530 by 909, we get 6 with a remainder of 76.
Record the quotient 6 as the next digit in the result. 
Result so far: 1253.8360836
Subtracting 5454 from 5530 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 15:
760 divided by 909 is 0 with a remainder of 760.
Record the quotient 0 as the next digit in the result. 
Result so far: 1253.8360836
Subtracting 0 from 760 leaves us with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

The final result is 1253.8360836 with a remainder of 7.6e-07.