30404808 ÷ 603 
The aim is to understand the frequency of 603 in 30404808.

On to step 1:
603 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 603

Let's proceed to step 2:
30 divided by 603 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Include the next digit (4) from the dividend after 30, then repeat: 304 / 603

Step 3:
When dividing 304 by 603, we get 0 with a remainder of 304.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 304 to get 304.
Fetch the next digit (0) from the dividend, attach it to 304 and continue: 3040 / 603

On to step 4:
603 can be fit into 3040 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 3015 from 3040 and we're left with 25.
Fetch the next digit (4) from the dividend, attach it to 25 and continue: 254 / 603

On to step 5:
603 can be fit into 254 0 times, resulting in a remainder of 254.
Put 0 as the next digit of the answer. 
Result so far: 50.0
If we take 0 away from 254, we end up with 254.
Fetch the next digit (8) from the dividend, attach it to 254 and continue: 2548 / 603

Going ahead to step 6:
When dividing 2548 by 603, we get 4 with a remainder of 136.
The number 4 becomes the next digit in our result. 
Result so far: 504.0
Subtracting 2412 from 2548 leaves us with 136.
Grab the next digit (0) from the dividend, add it to 136, then carry on: 1360 / 603

Advancing to step 7:
603 goes into 1360 2 times with a remainder of 154.
The number 2 becomes the next digit in our result. 
Result so far: 5042.0
If we take 1206 away from 1360, we end up with 154.
Take the next digit (8) from the dividend and append it to 154, then repeat: 1548 / 603

Step 8:
If we divide 1548 by 603, we get 2 and a remainder of 342.
The next digit of our result is 2. 
Result so far: 50422.0
Subtract 1206 from 1548 to get 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Moving on to step 9:
When dividing 3420 by 603, we get 5 with a remainder of 405.
Use 5 as the next digit of our solution. 
Result so far: 50422.5
Subtract 3015 from 3420 to get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Advancing to step 10:
If we divide 4050 by 603, we get 6 and a remainder of 432.
Put 6 as the next digit of the answer. 
Result so far: 50422.56
Deduct 3618 from 4050 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Let's proceed to step 11:
The number 603 fits into 4320 7 times, leaving a remainder of 99.
Put 7 as the next digit of the answer. 
Result so far: 50422.567
Subtract 4221 from 4320 to get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Let's proceed to step 12:
990 divided by 603 is 1 with a remainder of 387.
Put 1 as the next digit of the answer. 
Result so far: 50422.5671
Subtract 603 from 990 to get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Let's proceed to step 13:
If we divide 3870 by 603, we get 6 and a remainder of 252.
Put 6 as the next digit of the answer. 
Result so far: 50422.56716
Subtract 3618 from 3870 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Step 14:
If we divide 2520 by 603, we get 4 and a remainder of 108.
The next digit of our result is 4. 
Result so far: 50422.567164
Deduct 2412 from 2520 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 15:
1080 divided by 603 is 1 with a remainder of 477.
Use 1 as the next digit of our solution. 
Result so far: 50422.5671641
The remainder is 477 after subtracting 603 from 1080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

Advancing to step 16:
If we divide 4770 by 603, we get 7 and a remainder of 549.
The next digit of our result is 7. 
Result so far: 50422.56716417
If we subtract 4221 from 4770, we get 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

After the division, we end up with 50422.56716417 and a remainder of 5.49e-07.