31030 divided by 84 
The aim is to understand the frequency of 84 in 31030.

Moving on to step 1:
When dividing 3 by 84, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 84

Moving on to step 2:
31 divided by 84 is 0 with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Include the next digit (0) from the dividend after 31, then repeat: 310 / 84

Moving on to step 3:
The number 84 fits into 310 3 times, leaving a remainder of 58.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 252 from 310 to get 58.
Append the next digit (3) from the dividend to 58 and continue with: 583 / 84

Going ahead to step 4:
583 divided by 84 is 6 with a remainder of 79.
Put 6 as the next digit of the answer. 
Result so far: 36.0
If we subtract 504 from 583, we get 79.
Bring next digit (0) of the dividend behind the 79 and repeat the process: 790 / 84

On to step 5:
When dividing 790 by 84, we get 9 with a remainder of 34.
Write down 9 as next digit of the result. 
Result so far: 369.0
The remainder is 34 after subtracting 756 from 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 6:
The number 84 fits into 340 4 times, leaving a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 369.4
Subtract 336 from 340 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
84 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 369.4
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
84 can be fit into 400 4 times, resulting in a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 369.404
Deduct 336 from 400 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 9:
640 divided by 84 is 7 with a remainder of 52.
The next digit of our result is 7. 
Result so far: 369.4047
Subtract 588 from 640 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 10:
The number 84 fits into 520 6 times, leaving a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 369.40476
If we subtract 504 from 520, we 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.

Let's proceed to step 11:
160 divided by 84 is 1 with a remainder of 76.
The next digit of our result is 1. 
Result so far: 369.404761
If we subtract 84 from 160, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 12:
760 divided by 84 is 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 369.4047619
The remainder is 4 after subtracting 756 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 13:
The number 84 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 369.4047619
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 369.4047619, with a leftover of 4e-08.