6663278 ÷ 673 
The aim is to understand the frequency of 673 in 6663278.

Step 1:
If we divide 6 by 673, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 673

Step 2:
When dividing 66 by 673, we get 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Include the next digit (6) from the dividend after 66, then repeat: 666 / 673

Moving on to step 3:
The number 673 fits into 666 0 times, leaving a remainder of 666.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 666, we get 666.
Include the next digit (3) from the dividend after 666, then repeat: 6663 / 673

On to step 4:
The number 673 fits into 6663 9 times, leaving a remainder of 606.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 6057 from 6663 leaves us with 606.
Include the next digit (2) from the dividend after 606, then repeat: 6062 / 673

Step 5:
673 can be fit into 6062 9 times, resulting in a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
If we subtract 6057 from 6062, we get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 673

Let's proceed to step 6:
57 divided by 673 is 0 with a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 990.0
Subtract 0 from 57 to get 57.
Fetch the next digit (8) from the dividend, attach it to 57 and continue: 578 / 673

Step 7:
When dividing 578 by 673, we get 0 with a remainder of 578.
Use 0 as the next digit of our solution. 
Result so far: 9900.0
If we take 0 away from 578, we end up with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Going ahead to step 8:
If we divide 5780 by 673, we get 8 and a remainder of 396.
The next digit of our result is 8. 
Result so far: 9900.8
If we subtract 5384 from 5780, we get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Let's proceed to step 9:
The number 673 fits into 3960 5 times, leaving a remainder of 595.
The next digit of our result is 5. 
Result so far: 9900.85
Subtract 3365 from 3960 to get 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Step 10:
5950 divided by 673 is 8 with a remainder of 566.
Put 8 as the next digit of the answer. 
Result so far: 9900.858
If we take 5384 away from 5950, we end up with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

Let's proceed to step 11:
The number 673 fits into 5660 8 times, leaving a remainder of 276.
The number 8 becomes the next digit in our result. 
Result so far: 9900.8588
Subtract 5384 from 5660 to get 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

The quotient of the division is 9900.8588, and the remainder is 0.00276.