We look at the division of 369355 by 84 
The aim is to understand the frequency of 84 in 369355.

Going ahead to step 1:
3 divided by 84 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 84

Let's proceed to step 2:
84 can be fit into 36 0 times, resulting in a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 36 and we're left with 36.
Grab the next digit (9) from the dividend, add it to 36, then carry on: 369 / 84

Let's proceed to step 3:
84 goes into 369 4 times with a remainder of 33.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 336 from 369 to get 33.
Append the next digit (3) from the dividend to 33 and continue with: 333 / 84

Advancing to step 4:
If we divide 333 by 84, we get 3 and a remainder of 81.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we subtract 252 from 333, we get 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 84

Going ahead to step 5:
84 goes into 815 9 times with a remainder of 59.
Write down 9 as next digit of the result. 
Result so far: 439.0
If we subtract 756 from 815, we get 59.
Grab the next digit (5) from the dividend, add it to 59, then carry on: 595 / 84

Going ahead to step 6:
84 can be fit into 595 7 times, resulting in a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 4397.0
Subtract 588 from 595 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
The number 84 fits into 70 0 times, leaving a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 4397.0
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.

Advancing to step 8:
84 goes into 700 8 times with a remainder of 28.
Write down 8 as next digit of the result. 
Result so far: 4397.08
The remainder is 28 after subtracting 672 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
84 goes into 280 3 times with a remainder of 28.
Record the quotient 3 as the next digit in the result. 
Result so far: 4397.083
Deduct 252 from 280 and we're left 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.

Moving on to step 10:
84 goes into 280 3 times with a remainder of 28.
The next digit of our result is 3. 
Result so far: 4397.0833
The remainder is 28 after subtracting 252 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

After the division, we end up with 4397.0833 and a remainder of 0.00028.