We look at the division of 828535 by 3 
The aim is to understand the frequency of 3 in 828535.

On to step 1:
The number 3 fits into 8 2 times, leaving a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 2 after subtracting 6 from 8.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 3

Going ahead to step 2:
When dividing 22 by 3, we get 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtracting 21 from 22 leaves us with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 3

Going ahead to step 3:
3 goes into 18 6 times with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 276.0
Deduct 18 from 18 and we're left with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 3

Moving on to step 4:
3 goes into 5 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 2761.0
The remainder is 2 after subtracting 3 from 5.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 3

Let's proceed to step 5:
The number 3 fits into 23 7 times, leaving a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 27617.0
Deduct 21 from 23 and we're left with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 3

Moving on to step 6:
3 can be fit into 25 8 times, resulting in a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 276178.0
The remainder is 1 after subtracting 24 from 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
3 can be fit into 10 3 times, resulting in a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 276178.3
Subtracting 9 from 10 leaves us 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.

Advancing to step 8:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 276178.33
Deduct 9 from 10 and we're left 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.

The quotient of the division is 276178.33, and the remainder is 0.001.