We're dividing 837843 by 30 
The aim is to understand the frequency of 30 in 837843.

On to step 1:
If we divide 8 by 30, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 30

Moving on to step 2:
When dividing 83 by 30, we get 2 with a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 60 from 83, we get 23.
Grab the next digit (7) from the dividend, add it to 23, then carry on: 237 / 30

Moving on to step 3:
30 goes into 237 7 times with a remainder of 27.
The next digit of our result is 7. 
Result so far: 27.0
Deduct 210 from 237 and we're left with 27.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 30

Advancing to step 4:
30 goes into 278 9 times with a remainder of 8.
The next digit of our result is 9. 
Result so far: 279.0
Deduct 270 from 278 and we're left with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 30

Going ahead to step 5:
30 can be fit into 84 2 times, resulting in a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 2792.0
The remainder is 24 after subtracting 60 from 84.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 30

Let's proceed to step 6:
243 divided by 30 is 8 with a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 27928.0
Subtracting 240 from 243 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
30 goes into 30 1 times with a remainder of 0.
The next digit of our result is 1. 
Result so far: 27928.1
Subtract 30 from 30 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 30, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 27928.1
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.

Step 9:
30 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 27928.1
If we take 0 away from 0, we end up 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.

Our division results in 27928.1 with a remaining 0.0.