We look at the division of 19914086 by 803 
The aim is to understand the frequency of 803 in 19914086.

On to step 1:
When dividing 1 by 803, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 803

On to step 2:
When dividing 19 by 803, we get 0 with a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Take the next digit (9) from the dividend and append it to 19, then repeat: 199 / 803

Let's proceed to step 3:
803 goes into 199 0 times with a remainder of 199.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 199 after subtracting 0 from 199.
Grab the next digit (1) from the dividend, add it to 199, then carry on: 1991 / 803

Let's proceed to step 4:
803 can be fit into 1991 2 times, resulting in a remainder of 385.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1606 from 1991 to get 385.
Append the next digit (4) from the dividend to 385 and continue with: 3854 / 803

Step 5:
3854 divided by 803 is 4 with a remainder of 642.
Use 4 as the next digit of our solution. 
Result so far: 24.0
If we subtract 3212 from 3854, we get 642.
Fetch the next digit (0) from the dividend, attach it to 642 and continue: 6420 / 803

On to step 6:
If we divide 6420 by 803, we get 7 and a remainder of 799.
The number 7 becomes the next digit in our result. 
Result so far: 247.0
Subtract 5621 from 6420 to get 799.
Grab the next digit (8) from the dividend, add it to 799, then carry on: 7998 / 803

On to step 7:
If we divide 7998 by 803, we get 9 and a remainder of 771.
Write down 9 as next digit of the result. 
Result so far: 2479.0
Deduct 7227 from 7998 and we're left with 771.
Bring next digit (6) of the dividend behind the 771 and repeat the process: 7716 / 803

Advancing to step 8:
The number 803 fits into 7716 9 times, leaving a remainder of 489.
Put 9 as the next digit of the answer. 
Result so far: 24799.0
If we take 7227 away from 7716, we end up with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

On to step 9:
803 can be fit into 4890 6 times, resulting in a remainder of 72.
The next digit of our result is 6. 
Result so far: 24799.6
The remainder is 72 after subtracting 4818 from 4890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 10:
When dividing 720 by 803, we get 0 with a remainder of 720.
Record the quotient 0 as the next digit in the result. 
Result so far: 24799.6
Subtracting 0 from 720 leaves us with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Moving on to step 11:
When dividing 7200 by 803, we get 8 with a remainder of 776.
Write down 8 as next digit of the result. 
Result so far: 24799.608
Subtract 6424 from 7200 to get 776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Let's proceed to step 12:
803 can be fit into 7760 9 times, resulting in a remainder of 533.
Use 9 as the next digit of our solution. 
Result so far: 24799.6089
The remainder is 533 after subtracting 7227 from 7760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Step 13:
803 can be fit into 5330 6 times, resulting in a remainder of 512.
Write down 6 as next digit of the result. 
Result so far: 24799.60896
Deduct 4818 from 5330 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Going ahead to step 14:
803 can be fit into 5120 6 times, resulting in a remainder of 302.
Record the quotient 6 as the next digit in the result. 
Result so far: 24799.608966
If we take 4818 away from 5120, we end up with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

The final outcome is 24799.608966, with a leftover of 3.02e-05.