We look at the division of 361790 by 84 
The aim is to understand the frequency of 84 in 361790.

Step 1:
If we divide 3 by 84, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 84

On to step 2:
If we divide 36 by 84, we get 0 and a remainder of 36.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 36 and we're left with 36.
Bring next digit (1) of the dividend behind the 36 and repeat the process: 361 / 84

Step 3:
If we divide 361 by 84, we get 4 and a remainder of 25.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 336 from 361 to get 25.
Append the next digit (7) from the dividend to 25 and continue with: 257 / 84

Advancing to step 4:
When dividing 257 by 84, we get 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
Subtract 252 from 257 to get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 84

Going ahead to step 5:
59 divided by 84 is 0 with a remainder of 59.
The next digit of our result is 0. 
Result so far: 430.0
Subtracting 0 from 59 leaves us with 59.
Bring next digit (0) of the dividend behind the 59 and repeat the process: 590 / 84

On to step 6:
590 divided by 84 is 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 4307.0
If we subtract 588 from 590, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
When dividing 20 by 84, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 4307.0
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
The number 84 fits into 200 2 times, leaving a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 4307.02
Deduct 168 from 200 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
If we divide 320 by 84, we get 3 and a remainder of 68.
The number 3 becomes the next digit in our result. 
Result so far: 4307.023
Subtract 252 from 320 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 10:
When dividing 680 by 84, we get 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 4307.0238
Subtract 672 from 680 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
80 divided by 84 is 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 4307.0238
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
When dividing 800 by 84, we get 9 with a remainder of 44.
Put 9 as the next digit of the answer. 
Result so far: 4307.023809
If we take 756 away from 800, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
If we divide 440 by 84, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 4307.0238095
Subtracting 420 from 440 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
The number 84 fits into 200 2 times, leaving a remainder of 32.
The next digit of our result is 2. 
Result so far: 4307.02380952
If we take 168 away from 200, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 4307.02380952 with a balance of 3.2e-08.