We look at the division of 99890054 by 203 
The aim is to understand the frequency of 203 in 99890054.

On to step 1:
203 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 203

Going ahead to step 2:
The number 203 fits into 99 0 times, leaving a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Include the next digit (8) from the dividend after 99, then repeat: 998 / 203

Step 3:
When dividing 998 by 203, we get 4 with a remainder of 186.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 812 from 998 leaves us with 186.
Grab the next digit (9) from the dividend, add it to 186, then carry on: 1869 / 203

Moving on to step 4:
1869 divided by 203 is 9 with a remainder of 42.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
Subtracting 1827 from 1869 leaves us with 42.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 203

On to step 5:
When dividing 420 by 203, we get 2 with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 492.0
If we subtract 406 from 420, we get 14.
Take the next digit (0) from the dividend and append it to 14, then repeat: 140 / 203

Let's proceed to step 6:
The number 203 fits into 140 0 times, leaving a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 4920.0
If we take 0 away from 140, we end up with 140.
Bring next digit (5) of the dividend behind the 140 and repeat the process: 1405 / 203

Going ahead to step 7:
203 goes into 1405 6 times with a remainder of 187.
Record the quotient 6 as the next digit in the result. 
Result so far: 49206.0
If we subtract 1218 from 1405, we get 187.
Grab the next digit (4) from the dividend, add it to 187, then carry on: 1874 / 203

Advancing to step 8:
If we divide 1874 by 203, we get 9 and a remainder of 47.
Put 9 as the next digit of the answer. 
Result so far: 492069.0
The remainder is 47 after subtracting 1827 from 1874.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 9:
203 goes into 470 2 times with a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 492069.2
If we subtract 406 from 470, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 10:
If we divide 640 by 203, we get 3 and a remainder of 31.
The next digit of our result is 3. 
Result so far: 492069.23
Deduct 609 from 640 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 11:
203 goes into 310 1 times with a remainder of 107.
The number 1 becomes the next digit in our result. 
Result so far: 492069.231
Deduct 203 from 310 and we're left with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

On to step 12:
1070 divided by 203 is 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 492069.2315
Subtracting 1015 from 1070 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 13:
When dividing 550 by 203, we get 2 with a remainder of 144.
The next digit of our result is 2. 
Result so far: 492069.23152
Subtract 406 from 550 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Step 14:
If we divide 1440 by 203, we get 7 and a remainder of 19.
The next digit of our result is 7. 
Result so far: 492069.231527
Subtracting 1421 from 1440 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 15:
The number 203 fits into 190 0 times, leaving a remainder of 190.
Record the quotient 0 as the next digit in the result. 
Result so far: 492069.231527
The remainder is 190 after subtracting 0 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 16:
203 goes into 1900 9 times with a remainder of 73.
Write down 9 as next digit of the result. 
Result so far: 492069.23152709
Deduct 1827 from 1900 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

After the division, we end up with 492069.23152709 and a remainder of 7.3e-08.