321641 ÷ 30 
The aim is to understand the frequency of 30 in 321641.

Advancing to step 1:
3 divided by 30 is 0 with 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.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 30

Advancing to step 2:
When dividing 32 by 30, we get 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 30 from 32 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 30

Step 3:
When dividing 21 by 30, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 21 leaves us with 21.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 30

Going ahead to step 4:
30 goes into 216 7 times with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 107.0
Subtract 210 from 216 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 30

Advancing to step 5:
When dividing 64 by 30, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 1072.0
Subtract 60 from 64 to get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 30

Let's proceed to step 6:
The number 30 fits into 41 1 times, leaving a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 10721.0
If we take 30 away from 41, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
The number 30 fits into 110 3 times, leaving a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 10721.3
The remainder is 20 after subtracting 90 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
30 can be fit into 200 6 times, resulting in a remainder of 20.
The next digit of our result is 6. 
Result so far: 10721.36
If we take 180 away from 200, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
200 divided by 30 is 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 10721.366
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 10721.366, with a leftover of 0.002.