Let's divide 19402996 by 603
The aim is to understand the frequency of 603 in 19402996.

On to step 1:
1 divided by 603 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 603

On to step 2:
19 divided by 603 is 0 with a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 603

Advancing to step 3:
603 goes into 194 0 times with a remainder of 194.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 194, we end up with 194.
Take the next digit (0) from the dividend and append it to 194, then repeat: 1940 / 603

On to step 4:
When dividing 1940 by 603, we get 3 with a remainder of 131.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 131 after subtracting 1809 from 1940.
Include the next digit (2) from the dividend after 131, then repeat: 1312 / 603

Going ahead to step 5:
If we divide 1312 by 603, we get 2 and a remainder of 106.
The next digit of our result is 2. 
Result so far: 32.0
Subtract 1206 from 1312 to get 106.
Include the next digit (9) from the dividend after 106, then repeat: 1069 / 603

Let's proceed to step 6:
603 goes into 1069 1 times with a remainder of 466.
Put 1 as the next digit of the answer. 
Result so far: 321.0
If we subtract 603 from 1069, we get 466.
Fetch the next digit (9) from the dividend, attach it to 466 and continue: 4669 / 603

Moving on to step 7:
The number 603 fits into 4669 7 times, leaving a remainder of 448.
Use 7 as the next digit of our solution. 
Result so far: 3217.0
Deduct 4221 from 4669 and we're left with 448.
Append the next digit (6) from the dividend to 448 and continue with: 4486 / 603

Advancing to step 8:
The number 603 fits into 4486 7 times, leaving a remainder of 265.
Write down 7 as next digit of the result. 
Result so far: 32177.0
If we take 4221 away from 4486, we end up with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Advancing to step 9:
If we divide 2650 by 603, we get 4 and a remainder of 238.
The next digit of our result is 4. 
Result so far: 32177.4
Deduct 2412 from 2650 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Going ahead to step 10:
The number 603 fits into 2380 3 times, leaving a remainder of 571.
Record the quotient 3 as the next digit in the result. 
Result so far: 32177.43
If we subtract 1809 from 2380, we get 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

Let's proceed to step 11:
5710 divided by 603 is 9 with a remainder of 283.
Record the quotient 9 as the next digit in the result. 
Result so far: 32177.439
The remainder is 283 after subtracting 5427 from 5710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Step 12:
603 goes into 2830 4 times with a remainder of 418.
Record the quotient 4 as the next digit in the result. 
Result so far: 32177.4394
If we take 2412 away from 2830, we end up with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Step 13:
If we divide 4180 by 603, we get 6 and a remainder of 562.
Use 6 as the next digit of our solution. 
Result so far: 32177.43946
If we take 3618 away from 4180, we end up with 562.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5620, and continue the process.

Step 14:
When dividing 5620 by 603, we get 9 with a remainder of 193.
Use 9 as the next digit of our solution. 
Result so far: 32177.439469
The remainder is 193 after subtracting 5427 from 5620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Step 15:
If we divide 1930 by 603, we get 3 and a remainder of 121.
The number 3 becomes the next digit in our result. 
Result so far: 32177.4394693
Deduct 1809 from 1930 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Advancing to step 16:
When dividing 1210 by 603, we get 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 32177.43946932
Subtracting 1206 from 1210 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 32177.43946932 and a remainder of 4e-09.