Let's divide 31290742 by 830
The aim is to understand the frequency of 830 in 31290742.

Let's proceed to step 1:
If we divide 3 by 830, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 830

Moving on to step 2:
830 can be fit into 31 0 times, resulting in a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Take the next digit (2) from the dividend and append it to 31, then repeat: 312 / 830

Advancing to step 3:
830 goes into 312 0 times with a remainder of 312.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 312, we end up with 312.
Fetch the next digit (9) from the dividend, attach it to 312 and continue: 3129 / 830

Let's proceed to step 4:
830 goes into 3129 3 times with a remainder of 639.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 2490 from 3129 leaves us with 639.
Bring next digit (0) of the dividend behind the 639 and repeat the process: 6390 / 830

Advancing to step 5:
830 can be fit into 6390 7 times, resulting in a remainder of 580.
Use 7 as the next digit of our solution. 
Result so far: 37.0
Subtract 5810 from 6390 to get 580.
Append the next digit (7) from the dividend to 580 and continue with: 5807 / 830

On to step 6:
The number 830 fits into 5807 6 times, leaving a remainder of 827.
Record the quotient 6 as the next digit in the result. 
Result so far: 376.0
Subtract 4980 from 5807 to get 827.
Grab the next digit (4) from the dividend, add it to 827, then carry on: 8274 / 830

Step 7:
If we divide 8274 by 830, we get 9 and a remainder of 804.
The number 9 becomes the next digit in our result. 
Result so far: 3769.0
Subtracting 7470 from 8274 leaves us with 804.
Include the next digit (2) from the dividend after 804, then repeat: 8042 / 830

Moving on to step 8:
The number 830 fits into 8042 9 times, leaving a remainder of 572.
Record the quotient 9 as the next digit in the result. 
Result so far: 37699.0
Subtract 7470 from 8042 to get 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Advancing to step 9:
830 can be fit into 5720 6 times, resulting in a remainder of 740.
Write down 6 as next digit of the result. 
Result so far: 37699.6
If we take 4980 away from 5720, we end up with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Advancing to step 10:
When dividing 7400 by 830, we get 8 with a remainder of 760.
The next digit of our result is 8. 
Result so far: 37699.68
The remainder is 760 after subtracting 6640 from 7400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

On to step 11:
7600 divided by 830 is 9 with a remainder of 130.
The number 9 becomes the next digit in our result. 
Result so far: 37699.689
Deduct 7470 from 7600 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 12:
1300 divided by 830 is 1 with a remainder of 470.
Record the quotient 1 as the next digit in the result. 
Result so far: 37699.6891
The remainder is 470 after subtracting 830 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Moving on to step 13:
4700 divided by 830 is 5 with a remainder of 550.
The number 5 becomes the next digit in our result. 
Result so far: 37699.68915
If we subtract 4150 from 4700, we get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Let's proceed to step 14:
830 can be fit into 5500 6 times, resulting in a remainder of 520.
Put 6 as the next digit of the answer. 
Result so far: 37699.689156
Subtract 4980 from 5500 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Going ahead to step 15:
5200 divided by 830 is 6 with a remainder of 220.
The next digit of our result is 6. 
Result so far: 37699.6891566
If we take 4980 away from 5200, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Our division results in 37699.6891566 with a remaining 2.2e-06.