We look at the division of 703669 by 84 
The aim is to understand the frequency of 84 in 703669.

On to step 1:
7 divided by 84 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 84

On to step 2:
84 goes into 70 0 times with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Append the next digit (3) from the dividend to 70 and continue with: 703 / 84

Moving on to step 3:
84 goes into 703 8 times with a remainder of 31.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 672 from 703 leaves us with 31.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 84

Advancing to step 4:
316 divided by 84 is 3 with a remainder of 64.
Use 3 as the next digit of our solution. 
Result so far: 83.0
The remainder is 64 after subtracting 252 from 316.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 84

On to step 5:
84 can be fit into 646 7 times, resulting in a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 837.0
If we take 588 away from 646, we end up with 58.
Append the next digit (9) from the dividend to 58 and continue with: 589 / 84

Step 6:
When dividing 589 by 84, we get 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 8377.0
Subtracting 588 from 589 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
When dividing 10 by 84, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 8377.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
The number 84 fits into 100 1 times, leaving a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 8377.01
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
The number 84 fits into 160 1 times, leaving a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 8377.011
Deduct 84 from 160 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The quotient of the division is 8377.011, and the remainder is 0.0076.