939400 divided by 84 
The aim is to understand the frequency of 84 in 939400.

On to step 1:
84 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 84

Advancing to step 2:
When dividing 93 by 84, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 9 after subtracting 84 from 93.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 84

Advancing to step 3:
If we divide 99 by 84, we get 1 and a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Deduct 84 from 99 and we're left with 15.
Append the next digit (4) from the dividend to 15 and continue with: 154 / 84

Moving on to step 4:
154 divided by 84 is 1 with a remainder of 70.
Record the quotient 1 as the next digit in the result. 
Result so far: 111.0
If we take 84 away from 154, we end up with 70.
Include the next digit (0) from the dividend after 70, then repeat: 700 / 84

Moving on to step 5:
If we divide 700 by 84, we get 8 and a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 1118.0
The remainder is 28 after subtracting 672 from 700.
Append the next digit (0) from the dividend to 28 and continue with: 280 / 84

On to step 6:
When dividing 280 by 84, we get 3 with a remainder of 28.
The next digit of our result is 3. 
Result so far: 11183.0
If we take 252 away from 280, we end up 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 7:
The number 84 fits into 280 3 times, leaving a remainder of 28.
Write down 3 as next digit of the result. 
Result so far: 11183.3
Subtract 252 from 280 to get 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 8:
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: 11183.33
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.

The quotient of the division is 11183.33, and the remainder is 0.028.