We're dividing 67203870 by 803 
The aim is to understand the frequency of 803 in 67203870.

Advancing to step 1:
If we divide 6 by 803, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 803

Advancing to step 2:
When dividing 67 by 803, we get 0 with a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 67 leaves us with 67.
Grab the next digit (2) from the dividend, add it to 67, then carry on: 672 / 803

On to step 3:
When dividing 672 by 803, we get 0 with a remainder of 672.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 672 to get 672.
Fetch the next digit (0) from the dividend, attach it to 672 and continue: 6720 / 803

Moving on to step 4:
803 goes into 6720 8 times with a remainder of 296.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 6424 from 6720 and we're left with 296.
Append the next digit (3) from the dividend to 296 and continue with: 2963 / 803

Step 5:
When dividing 2963 by 803, we get 3 with a remainder of 554.
Write down 3 as next digit of the result. 
Result so far: 83.0
Subtracting 2409 from 2963 leaves us with 554.
Fetch the next digit (8) from the dividend, attach it to 554 and continue: 5548 / 803

Step 6:
803 can be fit into 5548 6 times, resulting in a remainder of 730.
The next digit of our result is 6. 
Result so far: 836.0
Subtracting 4818 from 5548 leaves us with 730.
Grab the next digit (7) from the dividend, add it to 730, then carry on: 7307 / 803

Going ahead to step 7:
The number 803 fits into 7307 9 times, leaving a remainder of 80.
Write down 9 as next digit of the result. 
Result so far: 8369.0
Deduct 7227 from 7307 and we're left with 80.
Include the next digit (0) from the dividend after 80, then repeat: 800 / 803

Going ahead to step 8:
The number 803 fits into 800 0 times, leaving a remainder of 800.
Put 0 as the next digit of the answer. 
Result so far: 83690.0
If we subtract 0 from 800, we get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Moving on to step 9:
The number 803 fits into 8000 9 times, leaving a remainder of 773.
The next digit of our result is 9. 
Result so far: 83690.9
Subtract 7227 from 8000 to get 773.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7730, and continue the process.

Going ahead to step 10:
When dividing 7730 by 803, we get 9 with a remainder of 503.
Write down 9 as next digit of the result. 
Result so far: 83690.99
Subtract 7227 from 7730 to get 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

The final result is 83690.99 with a remainder of 0.503.