187290 divided by 84 
The aim is to understand the frequency of 84 in 187290.

Advancing to step 1:
1 divided by 84 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 84

Step 2:
If we divide 18 by 84, we get 0 and a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 84

On to step 3:
The number 84 fits into 187 2 times, leaving a remainder of 19.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 168 from 187 leaves us with 19.
Grab the next digit (2) from the dividend, add it to 19, then carry on: 192 / 84

Let's proceed to step 4:
When dividing 192 by 84, we get 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 22.0
The remainder is 24 after subtracting 168 from 192.
Fetch the next digit (9) from the dividend, attach it to 24 and continue: 249 / 84

Going ahead to step 5:
The number 84 fits into 249 2 times, leaving a remainder of 81.
The next digit of our result is 2. 
Result so far: 222.0
Subtracting 168 from 249 leaves us with 81.
Take the next digit (0) from the dividend and append it to 81, then repeat: 810 / 84

Let's proceed to step 6:
The number 84 fits into 810 9 times, leaving a remainder of 54.
Use 9 as the next digit of our solution. 
Result so far: 2229.0
If we subtract 756 from 810, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 7:
If we divide 540 by 84, we get 6 and a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 2229.6
The remainder is 36 after subtracting 504 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 8:
The number 84 fits into 360 4 times, leaving a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 2229.64
Subtracting 336 from 360 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 9:
The number 84 fits into 240 2 times, leaving a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 2229.642
If we take 168 away from 240, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 10:
720 divided by 84 is 8 with a remainder of 48.
The next digit of our result is 8. 
Result so far: 2229.6428
Deduct 672 from 720 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
When dividing 480 by 84, we get 5 with a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 2229.64285
If we subtract 420 from 480, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 12:
If we divide 600 by 84, we get 7 and a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 2229.642857
If we take 588 away from 600, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 13:
84 goes into 120 1 times with a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 2229.6428571
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 14:
360 divided by 84 is 4 with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 2229.64285714
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 2229.64285714, with a leftover of 2.4e-08.