We're dividing 603333 by 86 
The aim is to understand the frequency of 86 in 603333.

Moving on to step 1:
When dividing 6 by 86, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 86

On to step 2:
The number 86 fits into 60 0 times, leaving a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 60, we end up with 60.
Include the next digit (3) from the dividend after 60, then repeat: 603 / 86

Moving on to step 3:
86 can be fit into 603 7 times, resulting in a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 602 from 603 to get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 86

Moving on to step 4:
If we divide 13 by 86, we get 0 and a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 70.0
Deduct 0 from 13 and we're left with 13.
Append the next digit (3) from the dividend to 13 and continue with: 133 / 86

On to step 5:
86 can be fit into 133 1 times, resulting in a remainder of 47.
Record the quotient 1 as the next digit in the result. 
Result so far: 701.0
Deduct 86 from 133 and we're left with 47.
Take the next digit (3) from the dividend and append it to 47, then repeat: 473 / 86

Going ahead to step 6:
86 can be fit into 473 5 times, resulting in a remainder of 43.
Record the quotient 5 as the next digit in the result. 
Result so far: 7015.0
The remainder is 43 after subtracting 430 from 473.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
86 goes into 430 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 7015.5
Subtracting 430 from 430 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 86, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 7015.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
86 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7015.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 7015.5 and a remainder of 0.0.