638870 ÷ 66 
Our goal is to divide 638870 by 66.

Going ahead to step 1:
66 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 66

On to step 2:
If we divide 63 by 66, we get 0 and a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Grab the next digit (8) from the dividend, add it to 63, then carry on: 638 / 66

Going ahead to step 3:
If we divide 638 by 66, we get 9 and a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 44 after subtracting 594 from 638.
Take the next digit (8) from the dividend and append it to 44, then repeat: 448 / 66

Going ahead to step 4:
If we divide 448 by 66, we get 6 and a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
If we take 396 away from 448, we end up with 52.
Fetch the next digit (7) from the dividend, attach it to 52 and continue: 527 / 66

On to step 5:
When dividing 527 by 66, we get 7 with a remainder of 65.
The next digit of our result is 7. 
Result so far: 967.0
If we subtract 462 from 527, we get 65.
Grab the next digit (0) from the dividend, add it to 65, then carry on: 650 / 66

Going ahead to step 6:
The number 66 fits into 650 9 times, leaving a remainder of 56.
The number 9 becomes the next digit in our result. 
Result so far: 9679.0
Subtracting 594 from 650 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 7:
560 divided by 66 is 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 9679.8
If we take 528 away from 560, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 8:
If we divide 320 by 66, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 9679.84
If we take 264 away from 320, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 9:
When dividing 560 by 66, we get 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 9679.848
Subtract 528 from 560 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
320 divided by 66 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 9679.8484
Subtract 264 from 320 to 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.

Going ahead to step 11:
66 goes into 560 8 times with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 9679.84848
Subtract 528 from 560 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 12:
If we divide 320 by 66, we get 4 and a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 9679.848484
If we take 264 away from 320, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 13:
When dividing 560 by 66, we get 8 with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 9679.8484848
Deduct 528 from 560 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 14:
When dividing 320 by 66, we get 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 9679.84848484
Subtracting 264 from 320 leaves us with 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 final result is 9679.84848484 with a remainder of 5.6e-08.