We look at the division of 3981482 by 634 
The aim is to understand the frequency of 634 in 3981482.

On to step 1:
3 divided by 634 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 634

Let's proceed to step 2:
634 goes into 39 0 times with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Bring next digit (8) of the dividend behind the 39 and repeat the process: 398 / 634

Moving on to step 3:
When dividing 398 by 634, we get 0 with a remainder of 398.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 398 leaves us with 398.
Take the next digit (1) from the dividend and append it to 398, then repeat: 3981 / 634

On to step 4:
3981 divided by 634 is 6 with a remainder of 177.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 3804 from 3981 to get 177.
Grab the next digit (4) from the dividend, add it to 177, then carry on: 1774 / 634

Going ahead to step 5:
When dividing 1774 by 634, we get 2 with a remainder of 506.
Record the quotient 2 as the next digit in the result. 
Result so far: 62.0
If we take 1268 away from 1774, we end up with 506.
Take the next digit (8) from the dividend and append it to 506, then repeat: 5068 / 634

Step 6:
If we divide 5068 by 634, we get 7 and a remainder of 630.
Use 7 as the next digit of our solution. 
Result so far: 627.0
Deduct 4438 from 5068 and we're left with 630.
Fetch the next digit (2) from the dividend, attach it to 630 and continue: 6302 / 634

Let's proceed to step 7:
634 can be fit into 6302 9 times, resulting in a remainder of 596.
Record the quotient 9 as the next digit in the result. 
Result so far: 6279.0
The remainder is 596 after subtracting 5706 from 6302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Going ahead to step 8:
If we divide 5960 by 634, we get 9 and a remainder of 254.
The next digit of our result is 9. 
Result so far: 6279.9
If we subtract 5706 from 5960, we get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Step 9:
If we divide 2540 by 634, we get 4 and a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 6279.94
The remainder is 4 after subtracting 2536 from 2540.
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 10:
When dividing 40 by 634, we get 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 6279.94
Deduct 0 from 40 and we're left 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 11:
When dividing 400 by 634, we get 0 with a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 6279.94
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 6279.94, with a leftover of 0.004.