We look at the division of 7428827 by 816 
The aim is to understand the frequency of 816 in 7428827.

Going ahead to step 1:
816 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 816

Let's proceed to step 2:
The number 816 fits into 74 0 times, leaving a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 74 leaves us with 74.
Fetch the next digit (2) from the dividend, attach it to 74 and continue: 742 / 816

Moving on to step 3:
The number 816 fits into 742 0 times, leaving a remainder of 742.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 742, we end up with 742.
Include the next digit (8) from the dividend after 742, then repeat: 7428 / 816

Advancing to step 4:
816 goes into 7428 9 times with a remainder of 84.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtracting 7344 from 7428 leaves us with 84.
Include the next digit (8) from the dividend after 84, then repeat: 848 / 816

Going ahead to step 5:
816 goes into 848 1 times with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 91.0
Subtract 816 from 848 to get 32.
Append the next digit (2) from the dividend to 32 and continue with: 322 / 816

Let's proceed to step 6:
When dividing 322 by 816, we get 0 with a remainder of 322.
Use 0 as the next digit of our solution. 
Result so far: 910.0
Subtracting 0 from 322 leaves us with 322.
Bring next digit (7) of the dividend behind the 322 and repeat the process: 3227 / 816

Let's proceed to step 7:
If we divide 3227 by 816, we get 3 and a remainder of 779.
Put 3 as the next digit of the answer. 
Result so far: 9103.0
Subtracting 2448 from 3227 leaves us with 779.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7790, and continue the process.

Going ahead to step 8:
816 can be fit into 7790 9 times, resulting in a remainder of 446.
Write down 9 as next digit of the result. 
Result so far: 9103.9
The remainder is 446 after subtracting 7344 from 7790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Step 9:
816 can be fit into 4460 5 times, resulting in a remainder of 380.
Put 5 as the next digit of the answer. 
Result so far: 9103.95
If we take 4080 away from 4460, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 10:
3800 divided by 816 is 4 with a remainder of 536.
Write down 4 as next digit of the result. 
Result so far: 9103.954
Deduct 3264 from 3800 and we're left with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

On to step 11:
5360 divided by 816 is 6 with a remainder of 464.
The number 6 becomes the next digit in our result. 
Result so far: 9103.9546
Subtracting 4896 from 5360 leaves us with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 12:
4640 divided by 816 is 5 with a remainder of 560.
Put 5 as the next digit of the answer. 
Result so far: 9103.95465
Deduct 4080 from 4640 and we're left with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 13:
When dividing 5600 by 816, we get 6 with a remainder of 704.
Use 6 as the next digit of our solution. 
Result so far: 9103.954656
If we subtract 4896 from 5600, we get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

Going ahead to step 14:
7040 divided by 816 is 8 with a remainder of 512.
Write down 8 as next digit of the result. 
Result so far: 9103.9546568
Deduct 6528 from 7040 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 15:
5120 divided by 816 is 6 with a remainder of 224.
The number 6 becomes the next digit in our result. 
Result so far: 9103.95465686
Subtract 4896 from 5120 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

The quotient of the division is 9103.95465686, and the remainder is 2.24e-07.