28215649 divided by 828 
The aim is to understand the frequency of 828 in 28215649.

Going ahead to step 1:
2 divided by 828 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 828

Going ahead to step 2:
828 goes into 28 0 times with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Grab the next digit (2) from the dividend, add it to 28, then carry on: 282 / 828

Let's proceed to step 3:
If we divide 282 by 828, we get 0 and a remainder of 282.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 282 to get 282.
Bring next digit (1) of the dividend behind the 282 and repeat the process: 2821 / 828

Let's proceed to step 4:
828 goes into 2821 3 times with a remainder of 337.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 2484 from 2821 to get 337.
Bring next digit (5) of the dividend behind the 337 and repeat the process: 3375 / 828

Let's proceed to step 5:
828 can be fit into 3375 4 times, resulting in a remainder of 63.
Write down 4 as next digit of the result. 
Result so far: 34.0
Subtract 3312 from 3375 to get 63.
Grab the next digit (6) from the dividend, add it to 63, then carry on: 636 / 828

On to step 6:
636 divided by 828 is 0 with a remainder of 636.
Put 0 as the next digit of the answer. 
Result so far: 340.0
Subtract 0 from 636 to get 636.
Take the next digit (4) from the dividend and append it to 636, then repeat: 6364 / 828

On to step 7:
828 can be fit into 6364 7 times, resulting in a remainder of 568.
Write down 7 as next digit of the result. 
Result so far: 3407.0
The remainder is 568 after subtracting 5796 from 6364.
Grab the next digit (9) from the dividend, add it to 568, then carry on: 5689 / 828

Going ahead to step 8:
828 goes into 5689 6 times with a remainder of 721.
Record the quotient 6 as the next digit in the result. 
Result so far: 34076.0
Deduct 4968 from 5689 and we're left with 721.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7210, and continue the process.

Advancing to step 9:
If we divide 7210 by 828, we get 8 and a remainder of 586.
Use 8 as the next digit of our solution. 
Result so far: 34076.8
If we subtract 6624 from 7210, we get 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Let's proceed to step 10:
If we divide 5860 by 828, we get 7 and a remainder of 64.
Put 7 as the next digit of the answer. 
Result so far: 34076.87
Subtract 5796 from 5860 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 11:
828 goes into 640 0 times with a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 34076.87
Subtracting 0 from 640 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

On to step 12:
When dividing 6400 by 828, we get 7 with a remainder of 604.
Use 7 as the next digit of our solution. 
Result so far: 34076.8707
Deduct 5796 from 6400 and we're left with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Moving on to step 13:
828 can be fit into 6040 7 times, resulting in a remainder of 244.
The next digit of our result is 7. 
Result so far: 34076.87077
Subtracting 5796 from 6040 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

The final outcome is 34076.87077, with a leftover of 0.000244.