We divide 7486391 by 821
The aim is to understand the frequency of 821 in 7486391.

Moving on to step 1:
821 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 821

On to step 2:
74 divided by 821 is 0 with a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 74, we end up with 74.
Bring next digit (8) of the dividend behind the 74 and repeat the process: 748 / 821

Moving on to step 3:
When dividing 748 by 821, we get 0 with a remainder of 748.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 748 and we're left with 748.
Append the next digit (6) from the dividend to 748 and continue with: 7486 / 821

Moving on to step 4:
When dividing 7486 by 821, we get 9 with a remainder of 97.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 7389 from 7486 and we're left with 97.
Take the next digit (3) from the dividend and append it to 97, then repeat: 973 / 821

Step 5:
If we divide 973 by 821, we get 1 and a remainder of 152.
Put 1 as the next digit of the answer. 
Result so far: 91.0
Deduct 821 from 973 and we're left with 152.
Fetch the next digit (9) from the dividend, attach it to 152 and continue: 1529 / 821

Step 6:
If we divide 1529 by 821, we get 1 and a remainder of 708.
Record the quotient 1 as the next digit in the result. 
Result so far: 911.0
If we take 821 away from 1529, we end up with 708.
Grab the next digit (1) from the dividend, add it to 708, then carry on: 7081 / 821

Advancing to step 7:
The number 821 fits into 7081 8 times, leaving a remainder of 513.
Record the quotient 8 as the next digit in the result. 
Result so far: 9118.0
If we subtract 6568 from 7081, we get 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Let's proceed to step 8:
5130 divided by 821 is 6 with a remainder of 204.
The next digit of our result is 6. 
Result so far: 9118.6
Deduct 4926 from 5130 and we're left with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Step 9:
821 goes into 2040 2 times with a remainder of 398.
The next digit of our result is 2. 
Result so far: 9118.62
If we take 1642 away from 2040, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Advancing to step 10:
The number 821 fits into 3980 4 times, leaving a remainder of 696.
Record the quotient 4 as the next digit in the result. 
Result so far: 9118.624
The remainder is 696 after subtracting 3284 from 3980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

Let's proceed to step 11:
6960 divided by 821 is 8 with a remainder of 392.
Put 8 as the next digit of the answer. 
Result so far: 9118.6248
If we take 6568 away from 6960, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Step 12:
821 goes into 3920 4 times with a remainder of 636.
The next digit of our result is 4. 
Result so far: 9118.62484
Deduct 3284 from 3920 and we're left with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Moving on to step 13:
821 goes into 6360 7 times with a remainder of 613.
The number 7 becomes the next digit in our result. 
Result so far: 9118.624847
Subtracting 5747 from 6360 leaves us with 613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6130, and continue the process.

Step 14:
The number 821 fits into 6130 7 times, leaving a remainder of 383.
The next digit of our result is 7. 
Result so far: 9118.6248477
The remainder is 383 after subtracting 5747 from 6130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

In conclusion, the division gives 9118.6248477 with a balance of 3.83e-06.