We're dividing 65487009 by 803 
The aim is to understand the frequency of 803 in 65487009.

Going ahead to step 1:
When dividing 6 by 803, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 803

Going ahead to step 2:
The number 803 fits into 65 0 times, leaving a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 65 to get 65.
Append the next digit (4) from the dividend to 65 and continue with: 654 / 803

On to step 3:
803 goes into 654 0 times with a remainder of 654.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 654 to get 654.
Grab the next digit (8) from the dividend, add it to 654, then carry on: 6548 / 803

Step 4:
When dividing 6548 by 803, we get 8 with a remainder of 124.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 6424 from 6548 leaves us with 124.
Append the next digit (7) from the dividend to 124 and continue with: 1247 / 803

On to step 5:
If we divide 1247 by 803, we get 1 and a remainder of 444.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
Subtracting 803 from 1247 leaves us with 444.
Include the next digit (0) from the dividend after 444, then repeat: 4440 / 803

On to step 6:
When dividing 4440 by 803, we get 5 with a remainder of 425.
Put 5 as the next digit of the answer. 
Result so far: 815.0
Deduct 4015 from 4440 and we're left with 425.
Bring next digit (0) of the dividend behind the 425 and repeat the process: 4250 / 803

On to step 7:
When dividing 4250 by 803, we get 5 with a remainder of 235.
The next digit of our result is 5. 
Result so far: 8155.0
Deduct 4015 from 4250 and we're left with 235.
Append the next digit (9) from the dividend to 235 and continue with: 2359 / 803

Going ahead to step 8:
2359 divided by 803 is 2 with a remainder of 753.
Write down 2 as next digit of the result. 
Result so far: 81552.0
Subtract 1606 from 2359 to get 753.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7530, and continue the process.

Step 9:
The number 803 fits into 7530 9 times, leaving a remainder of 303.
Record the quotient 9 as the next digit in the result. 
Result so far: 81552.9
Subtract 7227 from 7530 to get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Advancing to step 10:
If we divide 3030 by 803, we get 3 and a remainder of 621.
Write down 3 as next digit of the result. 
Result so far: 81552.93
Deduct 2409 from 3030 and we're left with 621.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6210, and continue the process.

Advancing to step 11:
803 goes into 6210 7 times with a remainder of 589.
The next digit of our result is 7. 
Result so far: 81552.937
Subtract 5621 from 6210 to get 589.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5890, and continue the process.

Going ahead to step 12:
If we divide 5890 by 803, we get 7 and a remainder of 269.
The number 7 becomes the next digit in our result. 
Result so far: 81552.9377
If we subtract 5621 from 5890, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Our division results in 81552.9377 with a remaining 0.00269.