We're dividing 5078099 by 285 
The aim is to understand the frequency of 285 in 5078099.

Moving on to step 1:
The number 285 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 285

Going ahead to step 2:
285 can be fit into 50 0 times, resulting in a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Take the next digit (7) from the dividend and append it to 50, then repeat: 507 / 285

Advancing to step 3:
285 can be fit into 507 1 times, resulting in a remainder of 222.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 285 from 507 to get 222.
Bring next digit (8) of the dividend behind the 222 and repeat the process: 2228 / 285

Going ahead to step 4:
2228 divided by 285 is 7 with a remainder of 233.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we subtract 1995 from 2228, we get 233.
Include the next digit (0) from the dividend after 233, then repeat: 2330 / 285

Going ahead to step 5:
If we divide 2330 by 285, we get 8 and a remainder of 50.
Write down 8 as next digit of the result. 
Result so far: 178.0
If we subtract 2280 from 2330, we get 50.
Append the next digit (9) from the dividend to 50 and continue with: 509 / 285

On to step 6:
If we divide 509 by 285, we get 1 and a remainder of 224.
Record the quotient 1 as the next digit in the result. 
Result so far: 1781.0
Subtracting 285 from 509 leaves us with 224.
Include the next digit (9) from the dividend after 224, then repeat: 2249 / 285

Step 7:
When dividing 2249 by 285, we get 7 with a remainder of 254.
The next digit of our result is 7. 
Result so far: 17817.0
If we subtract 1995 from 2249, 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 8:
285 goes into 2540 8 times with a remainder of 260.
Record the quotient 8 as the next digit in the result. 
Result so far: 17817.8
Subtract 2280 from 2540 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 9:
285 can be fit into 2600 9 times, resulting in a remainder of 35.
Write down 9 as next digit of the result. 
Result so far: 17817.89
If we subtract 2565 from 2600, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 10:
285 can be fit into 350 1 times, resulting in a remainder of 65.
Put 1 as the next digit of the answer. 
Result so far: 17817.891
If we subtract 285 from 350, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 11:
The number 285 fits into 650 2 times, leaving a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 17817.8912
The remainder is 80 after subtracting 570 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 12:
285 can be fit into 800 2 times, resulting in a remainder of 230.
The next digit of our result is 2. 
Result so far: 17817.89122
Subtracting 570 from 800 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

After the division, we end up with 17817.89122 and a remainder of 0.00023.