11967441 divided by 668 
The aim is to understand the frequency of 668 in 11967441.

On to step 1:
1 divided by 668 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 668

On to step 2:
668 can be fit into 11 0 times, resulting in a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 11, we get 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 668

On to step 3:
119 divided by 668 is 0 with a remainder of 119.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 119 and we're left with 119.
Grab the next digit (6) from the dividend, add it to 119, then carry on: 1196 / 668

Going ahead to step 4:
1196 divided by 668 is 1 with a remainder of 528.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 668 from 1196 leaves us with 528.
Fetch the next digit (7) from the dividend, attach it to 528 and continue: 5287 / 668

Moving on to step 5:
5287 divided by 668 is 7 with a remainder of 611.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 611 after subtracting 4676 from 5287.
Grab the next digit (4) from the dividend, add it to 611, then carry on: 6114 / 668

Advancing to step 6:
When dividing 6114 by 668, we get 9 with a remainder of 102.
The next digit of our result is 9. 
Result so far: 179.0
If we take 6012 away from 6114, we end up with 102.
Include the next digit (4) from the dividend after 102, then repeat: 1024 / 668

Moving on to step 7:
668 can be fit into 1024 1 times, resulting in a remainder of 356.
Write down 1 as next digit of the result. 
Result so far: 1791.0
Subtracting 668 from 1024 leaves us with 356.
Include the next digit (1) from the dividend after 356, then repeat: 3561 / 668

Moving on to step 8:
When dividing 3561 by 668, we get 5 with a remainder of 221.
The next digit of our result is 5. 
Result so far: 17915.0
If we subtract 3340 from 3561, we get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

On to step 9:
668 goes into 2210 3 times with a remainder of 206.
Record the quotient 3 as the next digit in the result. 
Result so far: 17915.3
Deduct 2004 from 2210 and we're left with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

On to step 10:
668 can be fit into 2060 3 times, resulting in a remainder of 56.
The next digit of our result is 3. 
Result so far: 17915.33
If we subtract 2004 from 2060, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The quotient of the division is 17915.33, and the remainder is 0.056.