We look at the division of 18904786 by 517 
The aim is to understand the frequency of 517 in 18904786.

Advancing to step 1:
517 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 517

Let's proceed to step 2:
18 divided by 517 is 0 with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 517

Advancing to step 3:
When dividing 189 by 517, we get 0 with a remainder of 189.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 189, we get 189.
Bring next digit (0) of the dividend behind the 189 and repeat the process: 1890 / 517

Going ahead to step 4:
If we divide 1890 by 517, we get 3 and a remainder of 339.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 339 after subtracting 1551 from 1890.
Fetch the next digit (4) from the dividend, attach it to 339 and continue: 3394 / 517

Moving on to step 5:
When dividing 3394 by 517, we get 6 with a remainder of 292.
The next digit of our result is 6. 
Result so far: 36.0
If we take 3102 away from 3394, we end up with 292.
Grab the next digit (7) from the dividend, add it to 292, then carry on: 2927 / 517

Step 6:
The number 517 fits into 2927 5 times, leaving a remainder of 342.
Write down 5 as next digit of the result. 
Result so far: 365.0
If we take 2585 away from 2927, we end up with 342.
Fetch the next digit (8) from the dividend, attach it to 342 and continue: 3428 / 517

On to step 7:
517 can be fit into 3428 6 times, resulting in a remainder of 326.
The number 6 becomes the next digit in our result. 
Result so far: 3656.0
Subtract 3102 from 3428 to get 326.
Grab the next digit (6) from the dividend, add it to 326, then carry on: 3266 / 517

Advancing to step 8:
3266 divided by 517 is 6 with a remainder of 164.
Put 6 as the next digit of the answer. 
Result so far: 36566.0
If we take 3102 away from 3266, we end up with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Advancing to step 9:
When dividing 1640 by 517, we get 3 with a remainder of 89.
The number 3 becomes the next digit in our result. 
Result so far: 36566.3
Subtract 1551 from 1640 to get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Moving on to step 10:
If we divide 890 by 517, we get 1 and a remainder of 373.
The next digit of our result is 1. 
Result so far: 36566.31
Subtract 517 from 890 to get 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Going ahead to step 11:
The number 517 fits into 3730 7 times, leaving a remainder of 111.
Record the quotient 7 as the next digit in the result. 
Result so far: 36566.317
If we take 3619 away from 3730, we end up with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Advancing to step 12:
517 goes into 1110 2 times with a remainder of 76.
Write down 2 as next digit of the result. 
Result so far: 36566.3172
If we subtract 1034 from 1110, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 13:
517 goes into 760 1 times with a remainder of 243.
The number 1 becomes the next digit in our result. 
Result so far: 36566.31721
If we take 517 away from 760, we end up with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Let's proceed to step 14:
When dividing 2430 by 517, we get 4 with a remainder of 362.
Record the quotient 4 as the next digit in the result. 
Result so far: 36566.317214
If we take 2068 away from 2430, we end up with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Step 15:
The number 517 fits into 3620 7 times, leaving a remainder of 1.
The next digit of our result is 7. 
Result so far: 36566.3172147
The remainder is 1 after subtracting 3619 from 3620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 16:
517 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 36566.3172147
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 36566.3172147, and the remainder is 1e-08.