We're dividing 52113278 by 603 
The aim is to understand the frequency of 603 in 52113278.

Advancing to step 1:
603 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (2) from the dividend, add it to 5, then carry on: 52 / 603

On to step 2:
603 goes into 52 0 times with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Grab the next digit (1) from the dividend, add it to 52, then carry on: 521 / 603

Moving on to step 3:
603 can be fit into 521 0 times, resulting in a remainder of 521.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 521 after subtracting 0 from 521.
Include the next digit (1) from the dividend after 521, then repeat: 5211 / 603

Advancing to step 4:
603 goes into 5211 8 times with a remainder of 387.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 4824 from 5211 and we're left with 387.
Append the next digit (3) from the dividend to 387 and continue with: 3873 / 603

Going ahead to step 5:
When dividing 3873 by 603, we get 6 with a remainder of 255.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
Deduct 3618 from 3873 and we're left with 255.
Bring next digit (2) of the dividend behind the 255 and repeat the process: 2552 / 603

On to step 6:
603 goes into 2552 4 times with a remainder of 140.
Write down 4 as next digit of the result. 
Result so far: 864.0
The remainder is 140 after subtracting 2412 from 2552.
Grab the next digit (7) from the dividend, add it to 140, then carry on: 1407 / 603

Let's proceed to step 7:
The number 603 fits into 1407 2 times, leaving a remainder of 201.
Put 2 as the next digit of the answer. 
Result so far: 8642.0
The remainder is 201 after subtracting 1206 from 1407.
Append the next digit (8) from the dividend to 201 and continue with: 2018 / 603

Let's proceed to step 8:
603 can be fit into 2018 3 times, resulting in a remainder of 209.
Write down 3 as next digit of the result. 
Result so far: 86423.0
If we take 1809 away from 2018, we end up with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Going ahead to step 9:
If we divide 2090 by 603, we get 3 and a remainder of 281.
Use 3 as the next digit of our solution. 
Result so far: 86423.3
Subtract 1809 from 2090 to get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Moving on to step 10:
603 goes into 2810 4 times with a remainder of 398.
The number 4 becomes the next digit in our result. 
Result so far: 86423.34
If we take 2412 away from 2810, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Going ahead to step 11:
603 goes into 3980 6 times with a remainder of 362.
The number 6 becomes the next digit in our result. 
Result so far: 86423.346
Subtracting 3618 from 3980 leaves us with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Advancing to step 12:
603 can be fit into 3620 6 times, resulting in a remainder of 2.
The next digit of our result is 6. 
Result so far: 86423.3466
Subtract 3618 from 3620 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 86423.3466 with a remainder of 2e-05.