66778242 divided by 17 
The aim is to understand the frequency of 17 in 66778242.

Going ahead to step 1:
If we divide 6 by 17, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 17

On to step 2:
If we divide 66 by 17, we get 3 and a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 15 after subtracting 51 from 66.
Bring next digit (7) of the dividend behind the 15 and repeat the process: 157 / 17

Let's proceed to step 3:
The number 17 fits into 157 9 times, leaving a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we subtract 153 from 157, we get 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 17

On to step 4:
17 goes into 47 2 times with a remainder of 13.
Write down 2 as next digit of the result. 
Result so far: 392.0
If we take 34 away from 47, we end up with 13.
Append the next digit (8) from the dividend to 13 and continue with: 138 / 17

Advancing to step 5:
When dividing 138 by 17, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 3928.0
Deduct 136 from 138 and we're left with 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 17

Going ahead to step 6:
When dividing 22 by 17, we get 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 39281.0
Subtracting 17 from 22 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 17

Moving on to step 7:
17 can be fit into 54 3 times, resulting in a remainder of 3.
The next digit of our result is 3. 
Result so far: 392813.0
Deduct 51 from 54 and we're left with 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 17

Step 8:
The number 17 fits into 32 1 times, leaving a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 3928131.0
Subtract 17 from 32 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 9:
If we divide 150 by 17, we get 8 and a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 3928131.8
If we take 136 away from 150, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
If we divide 140 by 17, we get 8 and a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 3928131.88
The remainder is 4 after subtracting 136 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 3928131.88, and the remainder is 0.004.