15210493 divided by 822 
The aim is to understand the frequency of 822 in 15210493.

Going ahead to step 1:
822 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 822

On to step 2:
822 can be fit into 15 0 times, resulting in a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (2) from the dividend and append it to 15, then repeat: 152 / 822

On to step 3:
When dividing 152 by 822, we get 0 with a remainder of 152.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 152, we end up with 152.
Include the next digit (1) from the dividend after 152, then repeat: 1521 / 822

Step 4:
822 goes into 1521 1 times with a remainder of 699.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 822 from 1521 leaves us with 699.
Bring next digit (0) of the dividend behind the 699 and repeat the process: 6990 / 822

On to step 5:
If we divide 6990 by 822, we get 8 and a remainder of 414.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
The remainder is 414 after subtracting 6576 from 6990.
Take the next digit (4) from the dividend and append it to 414, then repeat: 4144 / 822

Going ahead to step 6:
4144 divided by 822 is 5 with a remainder of 34.
Put 5 as the next digit of the answer. 
Result so far: 185.0
Deduct 4110 from 4144 and we're left with 34.
Grab the next digit (9) from the dividend, add it to 34, then carry on: 349 / 822

Step 7:
When dividing 349 by 822, we get 0 with a remainder of 349.
The number 0 becomes the next digit in our result. 
Result so far: 1850.0
Subtract 0 from 349 to get 349.
Bring next digit (3) of the dividend behind the 349 and repeat the process: 3493 / 822

Step 8:
822 goes into 3493 4 times with a remainder of 205.
Use 4 as the next digit of our solution. 
Result so far: 18504.0
Deduct 3288 from 3493 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Going ahead to step 9:
822 can be fit into 2050 2 times, resulting in a remainder of 406.
The next digit of our result is 2. 
Result so far: 18504.2
Subtract 1644 from 2050 to get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Going ahead to step 10:
The number 822 fits into 4060 4 times, leaving a remainder of 772.
The next digit of our result is 4. 
Result so far: 18504.24
Subtract 3288 from 4060 to get 772.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7720, and continue the process.

Step 11:
If we divide 7720 by 822, we get 9 and a remainder of 322.
Use 9 as the next digit of our solution. 
Result so far: 18504.249
If we subtract 7398 from 7720, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Step 12:
The number 822 fits into 3220 3 times, leaving a remainder of 754.
The next digit of our result is 3. 
Result so far: 18504.2493
Deduct 2466 from 3220 and we're left with 754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

Let's proceed to step 13:
If we divide 7540 by 822, we get 9 and a remainder of 142.
The next digit of our result is 9. 
Result so far: 18504.24939
Subtracting 7398 from 7540 leaves us with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Advancing to step 14:
The number 822 fits into 1420 1 times, leaving a remainder of 598.
The number 1 becomes the next digit in our result. 
Result so far: 18504.249391
Subtract 822 from 1420 to get 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

Moving on to step 15:
When dividing 5980 by 822, we get 7 with a remainder of 226.
Record the quotient 7 as the next digit in the result. 
Result so far: 18504.2493917
Subtract 5754 from 5980 to get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Step 16:
822 goes into 2260 2 times with a remainder of 616.
Record the quotient 2 as the next digit in the result. 
Result so far: 18504.24939172
If we take 1644 away from 2260, we end up with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

The final result is 18504.24939172 with a remainder of 6.16e-07.