We divide 66874715 by 10
We want to divide 66874715 by 10.

Advancing to step 1:
When dividing 6 by 10, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 10

On to step 2:
If we divide 66 by 10, we get 6 and a remainder of 6.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 60 from 66 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 10

On to step 3:
68 divided by 10 is 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 66.0
Subtract 60 from 68 to get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 10

On to step 4:
10 goes into 87 8 times with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 668.0
Subtract 80 from 87 to get 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 10

On to step 5:
The number 10 fits into 74 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 6687.0
If we take 70 away from 74, we end up with 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 10

Advancing to step 6:
The number 10 fits into 47 4 times, leaving a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 66874.0
The remainder is 7 after subtracting 40 from 47.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 10

Moving on to step 7:
If we divide 71 by 10, we get 7 and a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 668747.0
Subtract 70 from 71 to get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 10

Going ahead to step 8:
If we divide 15 by 10, we get 1 and a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 6687471.0
If we subtract 10 from 15, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 9:
The number 10 fits into 50 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 6687471.5
The remainder is 0 after subtracting 50 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
10 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 6687471.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
0 divided by 10 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6687471.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 6687471.5 and a remainder of 0.0.