3899301 divided by 603 
The aim is to understand the frequency of 603 in 3899301.

Step 1:
The number 603 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 603

Step 2:
When dividing 38 by 603, we get 0 with a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 38, we end up with 38.
Grab the next digit (9) from the dividend, add it to 38, then carry on: 389 / 603

Step 3:
389 divided by 603 is 0 with a remainder of 389.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 389 after subtracting 0 from 389.
Include the next digit (9) from the dividend after 389, then repeat: 3899 / 603

On to step 4:
When dividing 3899 by 603, we get 6 with a remainder of 281.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 3618 from 3899, we get 281.
Bring next digit (3) of the dividend behind the 281 and repeat the process: 2813 / 603

On to step 5:
If we divide 2813 by 603, we get 4 and a remainder of 401.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we take 2412 away from 2813, we end up with 401.
Grab the next digit (0) from the dividend, add it to 401, then carry on: 4010 / 603

On to step 6:
If we divide 4010 by 603, we get 6 and a remainder of 392.
Record the quotient 6 as the next digit in the result. 
Result so far: 646.0
If we subtract 3618 from 4010, we get 392.
Grab the next digit (1) from the dividend, add it to 392, then carry on: 3921 / 603

Step 7:
3921 divided by 603 is 6 with a remainder of 303.
Use 6 as the next digit of our solution. 
Result so far: 6466.0
If we subtract 3618 from 3921, we get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Moving on to step 8:
3030 divided by 603 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 6466.5
The remainder is 15 after subtracting 3015 from 3030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
603 can be fit into 150 0 times, resulting in a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 6466.5
Deduct 0 from 150 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 10:
If we divide 1500 by 603, we get 2 and a remainder of 294.
The number 2 becomes the next digit in our result. 
Result so far: 6466.502
The remainder is 294 after subtracting 1206 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

On to step 11:
If we divide 2940 by 603, we get 4 and a remainder of 528.
Use 4 as the next digit of our solution. 
Result so far: 6466.5024
Subtracting 2412 from 2940 leaves us with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Let's proceed to step 12:
5280 divided by 603 is 8 with a remainder of 456.
Put 8 as the next digit of the answer. 
Result so far: 6466.50248
Deduct 4824 from 5280 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Going ahead to step 13:
If we divide 4560 by 603, we get 7 and a remainder of 339.
Write down 7 as next digit of the result. 
Result so far: 6466.502487
Subtracting 4221 from 4560 leaves us with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Advancing to step 14:
When dividing 3390 by 603, we get 5 with a remainder of 375.
Record the quotient 5 as the next digit in the result. 
Result so far: 6466.5024875
If we subtract 3015 from 3390, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Going ahead to step 15:
3750 divided by 603 is 6 with a remainder of 132.
Put 6 as the next digit of the answer. 
Result so far: 6466.50248756
The remainder is 132 after subtracting 3618 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

In conclusion, the division gives 6466.50248756 with a balance of 1.32e-07.