909361 divided by 30 
The aim is to understand the frequency of 30 in 909361.

Step 1:
30 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 30

Step 2:
90 divided by 30 is 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 90 from 90 leaves us with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 30

Moving on to step 3:
When dividing 9 by 30, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtract 0 from 9 to get 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 30

On to step 4:
If we divide 93 by 30, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 303.0
If we subtract 90 from 93, we get 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 30

Going ahead to step 5:
36 divided by 30 is 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 3031.0
If we subtract 30 from 36, we get 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 30

Step 6:
61 divided by 30 is 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 30312.0
If we take 60 away from 61, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
30 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 30312.0
If we take 0 away from 10, we end up 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.

Step 8:
If we divide 100 by 30, we get 3 and a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 30312.03
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 9:
100 divided by 30 is 3 with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 30312.033
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 30312.033, and the remainder is 0.001.