We're dividing 901554 by 84 
The aim is to understand the frequency of 84 in 901554.

Advancing to step 1:
9 divided by 84 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 84

Moving on to step 2:
84 goes into 90 1 times with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 84 away from 90, we end up with 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 84

Step 3:
The number 84 fits into 61 0 times, leaving a remainder of 61.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 61 to get 61.
Grab the next digit (5) from the dividend, add it to 61, then carry on: 615 / 84

On to step 4:
84 goes into 615 7 times with a remainder of 27.
The next digit of our result is 7. 
Result so far: 107.0
The remainder is 27 after subtracting 588 from 615.
Include the next digit (5) from the dividend after 27, then repeat: 275 / 84

Let's proceed to step 5:
84 goes into 275 3 times with a remainder of 23.
The next digit of our result is 3. 
Result so far: 1073.0
Subtract 252 from 275 to get 23.
Append the next digit (4) from the dividend to 23 and continue with: 234 / 84

Step 6:
84 goes into 234 2 times with a remainder of 66.
Record the quotient 2 as the next digit in the result. 
Result so far: 10732.0
The remainder is 66 after subtracting 168 from 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 7:
660 divided by 84 is 7 with a remainder of 72.
Record the quotient 7 as the next digit in the result. 
Result so far: 10732.7
The remainder is 72 after subtracting 588 from 660.
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 8:
The number 84 fits into 720 8 times, leaving a remainder of 48.
The next digit of our result is 8. 
Result so far: 10732.78
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.

Step 9:
84 can be fit into 480 5 times, resulting in a remainder of 60.
Put 5 as the next digit of the answer. 
Result so far: 10732.785
The remainder is 60 after subtracting 420 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
600 divided by 84 is 7 with a remainder of 12.
The next digit of our result is 7. 
Result so far: 10732.7857
The remainder is 12 after subtracting 588 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
If we divide 120 by 84, we get 1 and a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 10732.78571
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
When dividing 360 by 84, we get 4 with a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 10732.785714
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.

Advancing to step 13:
The number 84 fits into 240 2 times, leaving a remainder of 72.
The next digit of our result is 2. 
Result so far: 10732.7857142
If we subtract 168 from 240, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 14:
84 can be fit into 720 8 times, resulting in a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 10732.78571428
The remainder is 48 after subtracting 672 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

After the division, we end up with 10732.78571428 and a remainder of 4.8e-08.