39841945 divided by 517 
The aim is to understand the frequency of 517 in 39841945.

Advancing to step 1:
517 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 517

Moving on to step 2:
If we divide 39 by 517, we get 0 and a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Include the next digit (8) from the dividend after 39, then repeat: 398 / 517

Step 3:
When dividing 398 by 517, we get 0 with a remainder of 398.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 398, we get 398.
Append the next digit (4) from the dividend to 398 and continue with: 3984 / 517

Moving on to step 4:
517 goes into 3984 7 times with a remainder of 365.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 3619 from 3984 to get 365.
Append the next digit (1) from the dividend to 365 and continue with: 3651 / 517

Moving on to step 5:
3651 divided by 517 is 7 with a remainder of 32.
The next digit of our result is 7. 
Result so far: 77.0
Deduct 3619 from 3651 and we're left with 32.
Grab the next digit (9) from the dividend, add it to 32, then carry on: 329 / 517

Going ahead to step 6:
The number 517 fits into 329 0 times, leaving a remainder of 329.
The number 0 becomes the next digit in our result. 
Result so far: 770.0
If we subtract 0 from 329, we get 329.
Fetch the next digit (4) from the dividend, attach it to 329 and continue: 3294 / 517

On to step 7:
The number 517 fits into 3294 6 times, leaving a remainder of 192.
The next digit of our result is 6. 
Result so far: 7706.0
Subtracting 3102 from 3294 leaves us with 192.
Bring next digit (5) of the dividend behind the 192 and repeat the process: 1925 / 517

Advancing to step 8:
When dividing 1925 by 517, we get 3 with a remainder of 374.
Use 3 as the next digit of our solution. 
Result so far: 77063.0
The remainder is 374 after subtracting 1551 from 1925.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Advancing to step 9:
3740 divided by 517 is 7 with a remainder of 121.
Record the quotient 7 as the next digit in the result. 
Result so far: 77063.7
If we subtract 3619 from 3740, we get 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Advancing to step 10:
When dividing 1210 by 517, we get 2 with a remainder of 176.
Use 2 as the next digit of our solution. 
Result so far: 77063.72
If we subtract 1034 from 1210, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 11:
If we divide 1760 by 517, we get 3 and a remainder of 209.
Record the quotient 3 as the next digit in the result. 
Result so far: 77063.723
Deduct 1551 from 1760 and we're left with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Step 12:
517 can be fit into 2090 4 times, resulting in a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 77063.7234
Subtract 2068 from 2090 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 13:
If we divide 220 by 517, we get 0 and a remainder of 220.
Record the quotient 0 as the next digit in the result. 
Result so far: 77063.7234
If we take 0 away from 220, 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.

Step 14:
2200 divided by 517 is 4 with a remainder of 132.
Write down 4 as next digit of the result. 
Result so far: 77063.723404
Deduct 2068 from 2200 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Going ahead to step 15:
When dividing 1320 by 517, we get 2 with a remainder of 286.
The number 2 becomes the next digit in our result. 
Result so far: 77063.7234042
Deduct 1034 from 1320 and we're left with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Going ahead to step 16:
The number 517 fits into 2860 5 times, leaving a remainder of 275.
Record the quotient 5 as the next digit in the result. 
Result so far: 77063.72340425
If we take 2585 away from 2860, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Our division results in 77063.72340425 with a remaining 2.75e-07.