90263839 divided by 30 
The aim is to understand the frequency of 30 in 90263839.

Going ahead to step 1:
The number 30 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 30

Step 2:
90 divided by 30 is 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 90 away from 90, we end up with 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 30

Moving on to step 3:
30 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 30

Going ahead to step 4:
If we divide 26 by 30, we get 0 and a remainder of 26.
Write down 0 as next digit of the result. 
Result so far: 300.0
Subtracting 0 from 26 leaves us with 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 30

Moving on to step 5:
30 goes into 263 8 times with a remainder of 23.
Put 8 as the next digit of the answer. 
Result so far: 3008.0
The remainder is 23 after subtracting 240 from 263.
Fetch the next digit (8) from the dividend, attach it to 23 and continue: 238 / 30

Going ahead to step 6:
30 can be fit into 238 7 times, resulting in a remainder of 28.
The next digit of our result is 7. 
Result so far: 30087.0
The remainder is 28 after subtracting 210 from 238.
Append the next digit (3) from the dividend to 28 and continue with: 283 / 30

Advancing to step 7:
30 goes into 283 9 times with a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 300879.0
Deduct 270 from 283 and we're left with 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 30

Moving on to step 8:
The number 30 fits into 139 4 times, leaving a remainder of 19.
Write down 4 as next digit of the result. 
Result so far: 3008794.0
Subtracting 120 from 139 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
The number 30 fits into 190 6 times, leaving a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 3008794.6
The remainder is 10 after subtracting 180 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
The number 30 fits into 100 3 times, leaving a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 3008794.63
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 11:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 3008794.633
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 3008794.633 and a remainder of 0.001.