We look at the division of 785362 by 30 
The aim is to understand the frequency of 30 in 785362.

On to step 1:
30 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 30

Step 2:
78 divided by 30 is 2 with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 60 from 78, we get 18.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 30

On to step 3:
The number 30 fits into 185 6 times, leaving a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 26.0
Subtract 180 from 185 to get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 30

Advancing to step 4:
The number 30 fits into 53 1 times, leaving a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 261.0
Deduct 30 from 53 and we're left with 23.
Grab the next digit (6) from the dividend, add it to 23, then carry on: 236 / 30

Moving on to step 5:
30 goes into 236 7 times with a remainder of 26.
Record the quotient 7 as the next digit in the result. 
Result so far: 2617.0
Subtracting 210 from 236 leaves us with 26.
Grab the next digit (2) from the dividend, add it to 26, then carry on: 262 / 30

Advancing to step 6:
When dividing 262 by 30, we get 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 26178.0
If we take 240 away from 262, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
220 divided by 30 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 26178.7
Subtract 210 from 220 to 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.

On to step 8:
100 divided by 30 is 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 26178.73
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.

On to step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 26178.733
The remainder is 10 after subtracting 90 from 100.
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 26178.733, and the remainder is 0.001.