Let's divide 397579 by 84
The aim is to understand the frequency of 84 in 397579.

Step 1:
84 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 84

Step 2:
When dividing 39 by 84, we get 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (7) from the dividend after 39, then repeat: 397 / 84

Step 3:
If we divide 397 by 84, we get 4 and a remainder of 61.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 336 away from 397, we end up with 61.
Grab the next digit (5) from the dividend, add it to 61, then carry on: 615 / 84

On to step 4:
The number 84 fits into 615 7 times, leaving a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
Deduct 588 from 615 and we're left with 27.
Append the next digit (7) from the dividend to 27 and continue with: 277 / 84

Advancing to step 5:
The number 84 fits into 277 3 times, leaving a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 473.0
The remainder is 25 after subtracting 252 from 277.
Fetch the next digit (9) from the dividend, attach it to 25 and continue: 259 / 84

On to step 6:
84 goes into 259 3 times with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 4733.0
If we take 252 away from 259, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
70 divided by 84 is 0 with a remainder of 70.
The next digit of our result is 0. 
Result so far: 4733.0
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 8:
84 goes into 700 8 times with a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 4733.08
Subtracting 672 from 700 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
280 divided by 84 is 3 with a remainder of 28.
Record the quotient 3 as the next digit in the result. 
Result so far: 4733.083
Subtracting 252 from 280 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 10:
84 can be fit into 280 3 times, resulting in a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 4733.0833
Subtracting 252 from 280 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The quotient of the division is 4733.0833, and the remainder is 0.00028.