28131594 divided by 515 
The aim is to understand the frequency of 515 in 28131594.

Advancing to step 1:
515 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 515

Moving on to step 2:
If we divide 28 by 515, we get 0 and a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Grab the next digit (1) from the dividend, add it to 28, then carry on: 281 / 515

Going ahead to step 3:
515 goes into 281 0 times with a remainder of 281.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 281, we end up with 281.
Fetch the next digit (3) from the dividend, attach it to 281 and continue: 2813 / 515

On to step 4:
If we divide 2813 by 515, we get 5 and a remainder of 238.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 2575 from 2813 to get 238.
Take the next digit (1) from the dividend and append it to 238, then repeat: 2381 / 515

On to step 5:
515 can be fit into 2381 4 times, resulting in a remainder of 321.
The next digit of our result is 4. 
Result so far: 54.0
The remainder is 321 after subtracting 2060 from 2381.
Bring next digit (5) of the dividend behind the 321 and repeat the process: 3215 / 515

Let's proceed to step 6:
The number 515 fits into 3215 6 times, leaving a remainder of 125.
Write down 6 as next digit of the result. 
Result so far: 546.0
Subtracting 3090 from 3215 leaves us with 125.
Grab the next digit (9) from the dividend, add it to 125, then carry on: 1259 / 515

Step 7:
515 goes into 1259 2 times with a remainder of 229.
Put 2 as the next digit of the answer. 
Result so far: 5462.0
Subtract 1030 from 1259 to get 229.
Fetch the next digit (4) from the dividend, attach it to 229 and continue: 2294 / 515

Advancing to step 8:
515 can be fit into 2294 4 times, resulting in a remainder of 234.
Use 4 as the next digit of our solution. 
Result so far: 54624.0
Deduct 2060 from 2294 and we're left with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Advancing to step 9:
The number 515 fits into 2340 4 times, leaving a remainder of 280.
Write down 4 as next digit of the result. 
Result so far: 54624.4
Deduct 2060 from 2340 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 10:
515 can be fit into 2800 5 times, resulting in a remainder of 225.
The next digit of our result is 5. 
Result so far: 54624.45
Deduct 2575 from 2800 and we're left with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 11:
If we divide 2250 by 515, we get 4 and a remainder of 190.
The number 4 becomes the next digit in our result. 
Result so far: 54624.454
If we take 2060 away from 2250, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 12:
1900 divided by 515 is 3 with a remainder of 355.
The next digit of our result is 3. 
Result so far: 54624.4543
If we take 1545 away from 1900, we end up with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Moving on to step 13:
If we divide 3550 by 515, we get 6 and a remainder of 460.
Write down 6 as next digit of the result. 
Result so far: 54624.45436
Subtracting 3090 from 3550 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Step 14:
If we divide 4600 by 515, we get 8 and a remainder of 480.
Write down 8 as next digit of the result. 
Result so far: 54624.454368
The remainder is 480 after subtracting 4120 from 4600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 15:
The number 515 fits into 4800 9 times, leaving a remainder of 165.
Record the quotient 9 as the next digit in the result. 
Result so far: 54624.4543689
Deduct 4635 from 4800 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Going ahead to step 16:
515 can be fit into 1650 3 times, resulting in a remainder of 105.
Write down 3 as next digit of the result. 
Result so far: 54624.45436893
Subtracting 1545 from 1650 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

After the division, we end up with 54624.45436893 and a remainder of 1.05e-07.