66696415 ÷ 417 
Let's see how many times 417 fits into 66696415.

Going ahead to step 1:
417 goes into 6 0 times with 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.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 417

Advancing to step 2:
When dividing 66 by 417, we get 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Grab the next digit (6) from the dividend, add it to 66, then carry on: 666 / 417

On to step 3:
417 can be fit into 666 1 times, resulting in a remainder of 249.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 249 after subtracting 417 from 666.
Append the next digit (9) from the dividend to 249 and continue with: 2499 / 417

Advancing to step 4:
If we divide 2499 by 417, we get 5 and a remainder of 414.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtract 2085 from 2499 to get 414.
Append the next digit (6) from the dividend to 414 and continue with: 4146 / 417

Let's proceed to step 5:
When dividing 4146 by 417, we get 9 with a remainder of 393.
The number 9 becomes the next digit in our result. 
Result so far: 159.0
Subtract 3753 from 4146 to get 393.
Fetch the next digit (4) from the dividend, attach it to 393 and continue: 3934 / 417

Going ahead to step 6:
When dividing 3934 by 417, we get 9 with a remainder of 181.
Use 9 as the next digit of our solution. 
Result so far: 1599.0
Deduct 3753 from 3934 and we're left with 181.
Grab the next digit (1) from the dividend, add it to 181, then carry on: 1811 / 417

Advancing to step 7:
If we divide 1811 by 417, we get 4 and a remainder of 143.
Record the quotient 4 as the next digit in the result. 
Result so far: 15994.0
If we take 1668 away from 1811, we end up with 143.
Grab the next digit (5) from the dividend, add it to 143, then carry on: 1435 / 417

Moving on to step 8:
The number 417 fits into 1435 3 times, leaving a remainder of 184.
The next digit of our result is 3. 
Result so far: 159943.0
If we subtract 1251 from 1435, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 9:
417 goes into 1840 4 times with a remainder of 172.
The next digit of our result is 4. 
Result so far: 159943.4
The remainder is 172 after subtracting 1668 from 1840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Moving on to step 10:
The number 417 fits into 1720 4 times, leaving a remainder of 52.
Write down 4 as next digit of the result. 
Result so far: 159943.44
The remainder is 52 after subtracting 1668 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Our division results in 159943.44 with a remaining 0.052.