We look at the division of 3360 by 31 
The aim is to understand the frequency of 31 in 3360.

Advancing to step 1:
If we divide 3 by 31, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 31

Step 2:
The number 31 fits into 33 1 times, leaving a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 31 from 33, we get 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 31

Let's proceed to step 3:
When dividing 26 by 31, we get 0 with a remainder of 26.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 26 leaves us with 26.
Grab the next digit (0) from the dividend, add it to 26, then carry on: 260 / 31

Moving on to step 4:
31 can be fit into 260 8 times, resulting in a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 108.0
The remainder is 12 after subtracting 248 from 260.
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 5:
120 divided by 31 is 3 with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 108.3
The remainder is 27 after subtracting 93 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 6:
31 can be fit into 270 8 times, resulting in a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 108.38
Subtract 248 from 270 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 7:
31 goes into 220 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 108.387
If we subtract 217 from 220, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
31 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 108.387
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
31 can be fit into 300 9 times, resulting in a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 108.38709
If we subtract 279 from 300, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 10:
210 divided by 31 is 6 with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 108.387096
Deduct 186 from 210 and we're left 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.

Going ahead to step 11:
240 divided by 31 is 7 with a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 108.3870967
If we subtract 217 from 240, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 12:
31 goes into 230 7 times with a remainder of 13.
The next digit of our result is 7. 
Result so far: 108.38709677
If we take 217 away from 230, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The quotient of the division is 108.38709677, and the remainder is 1.3e-08.