6742124 divided by 816 
The aim is to understand the frequency of 816 in 6742124.

Advancing to step 1:
If we divide 6 by 816, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 816

Let's proceed to step 2:
816 goes into 67 0 times with a remainder of 67.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 67 after subtracting 0 from 67.
Take the next digit (4) from the dividend and append it to 67, then repeat: 674 / 816

Going ahead to step 3:
The number 816 fits into 674 0 times, leaving a remainder of 674.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 674, we end up with 674.
Fetch the next digit (2) from the dividend, attach it to 674 and continue: 6742 / 816

Let's proceed to step 4:
816 goes into 6742 8 times with a remainder of 214.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 6528 from 6742 leaves us with 214.
Append the next digit (1) from the dividend to 214 and continue with: 2141 / 816

Moving on to step 5:
816 goes into 2141 2 times with a remainder of 509.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
The remainder is 509 after subtracting 1632 from 2141.
Include the next digit (2) from the dividend after 509, then repeat: 5092 / 816

Let's proceed to step 6:
816 can be fit into 5092 6 times, resulting in a remainder of 196.
The next digit of our result is 6. 
Result so far: 826.0
If we subtract 4896 from 5092, we get 196.
Grab the next digit (4) from the dividend, add it to 196, then carry on: 1964 / 816

Advancing to step 7:
816 can be fit into 1964 2 times, resulting in a remainder of 332.
The number 2 becomes the next digit in our result. 
Result so far: 8262.0
If we take 1632 away from 1964, we end up with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Step 8:
3320 divided by 816 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 8262.4
Subtracting 3264 from 3320 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 9:
816 goes into 560 0 times with a remainder of 560.
Put 0 as the next digit of the answer. 
Result so far: 8262.4
Subtract 0 from 560 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Going ahead to step 10:
816 goes into 5600 6 times with a remainder of 704.
The next digit of our result is 6. 
Result so far: 8262.406
Subtract 4896 from 5600 to 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.

Let's proceed to step 11:
7040 divided by 816 is 8 with a remainder of 512.
Record the quotient 8 as the next digit in the result. 
Result so far: 8262.4068
If we subtract 6528 from 7040, we get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

On to step 12:
816 goes into 5120 6 times with a remainder of 224.
Record the quotient 6 as the next digit in the result. 
Result so far: 8262.40686
Deduct 4896 from 5120 and we're left with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Going ahead to step 13:
When dividing 2240 by 816, we get 2 with a remainder of 608.
The next digit of our result is 2. 
Result so far: 8262.406862
If we subtract 1632 from 2240, we get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Let's proceed to step 14:
816 can be fit into 6080 7 times, resulting in a remainder of 368.
The next digit of our result is 7. 
Result so far: 8262.4068627
Deduct 5712 from 6080 and we're left with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 15:
The number 816 fits into 3680 4 times, leaving a remainder of 416.
Record the quotient 4 as the next digit in the result. 
Result so far: 8262.40686274
Deduct 3264 from 3680 and we're left with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

The final result is 8262.40686274 with a remainder of 4.16e-07.