784892 ÷ 31 
The aim is to understand the frequency of 31 in 784892.

Advancing to step 1:
31 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 31

Advancing to step 2:
31 can be fit into 78 2 times, resulting in a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 62 from 78 to get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 31

On to step 3:
164 divided by 31 is 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
Subtracting 155 from 164 leaves us with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 31

Going ahead to step 4:
When dividing 98 by 31, we get 3 with a remainder of 5.
The next digit of our result is 3. 
Result so far: 253.0
Subtract 93 from 98 to get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 31

Moving on to step 5:
31 can be fit into 59 1 times, resulting in a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 2531.0
Deduct 31 from 59 and we're left with 28.
Bring next digit (2) of the dividend behind the 28 and repeat the process: 282 / 31

On to step 6:
The number 31 fits into 282 9 times, leaving a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 25319.0
If we take 279 away from 282, we end up with 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 7:
When dividing 30 by 31, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 25319.0
Subtracting 0 from 30 leaves us with 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 8:
31 can be fit into 300 9 times, resulting in a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 25319.09
Subtracting 279 from 300 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 9:
The number 31 fits into 210 6 times, leaving a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 25319.096
Subtracting 186 from 210 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.

Going ahead to step 10:
240 divided by 31 is 7 with a remainder of 23.
The next digit of our result is 7. 
Result so far: 25319.0967
Deduct 217 from 240 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 11:
The number 31 fits into 230 7 times, leaving a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 25319.09677
Deduct 217 from 230 and we're left 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 final outcome is 25319.09677, with a leftover of 1.3e-05.