We're dividing 67643381 by 866 
We want to figure out the number of times 67643381 can be divided by 866.

Step 1:
The number 866 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 866

Advancing to step 2:
The number 866 fits into 67 0 times, leaving a remainder of 67.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 67, we get 67.
Fetch the next digit (6) from the dividend, attach it to 67 and continue: 676 / 866

Step 3:
When dividing 676 by 866, we get 0 with a remainder of 676.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 676, we end up with 676.
Take the next digit (4) from the dividend and append it to 676, then repeat: 6764 / 866

Moving on to step 4:
If we divide 6764 by 866, we get 7 and a remainder of 702.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 702 after subtracting 6062 from 6764.
Take the next digit (3) from the dividend and append it to 702, then repeat: 7023 / 866

Moving on to step 5:
If we divide 7023 by 866, we get 8 and a remainder of 95.
Use 8 as the next digit of our solution. 
Result so far: 78.0
Subtracting 6928 from 7023 leaves us with 95.
Take the next digit (3) from the dividend and append it to 95, then repeat: 953 / 866

On to step 6:
When dividing 953 by 866, we get 1 with a remainder of 87.
Put 1 as the next digit of the answer. 
Result so far: 781.0
If we subtract 866 from 953, we get 87.
Fetch the next digit (8) from the dividend, attach it to 87 and continue: 878 / 866

Advancing to step 7:
The number 866 fits into 878 1 times, leaving a remainder of 12.
The next digit of our result is 1. 
Result so far: 7811.0
If we subtract 866 from 878, we get 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 866

Step 8:
When dividing 121 by 866, we get 0 with a remainder of 121.
The next digit of our result is 0. 
Result so far: 78110.0
The remainder is 121 after subtracting 0 from 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Moving on to step 9:
The number 866 fits into 1210 1 times, leaving a remainder of 344.
The next digit of our result is 1. 
Result so far: 78110.1
The remainder is 344 after subtracting 866 from 1210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Going ahead to step 10:
If we divide 3440 by 866, we get 3 and a remainder of 842.
Put 3 as the next digit of the answer. 
Result so far: 78110.13
Subtracting 2598 from 3440 leaves us with 842.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8420, and continue the process.

Going ahead to step 11:
866 goes into 8420 9 times with a remainder of 626.
Use 9 as the next digit of our solution. 
Result so far: 78110.139
If we take 7794 away from 8420, we end up with 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

Moving on to step 12:
When dividing 6260 by 866, we get 7 with a remainder of 198.
The next digit of our result is 7. 
Result so far: 78110.1397
If we take 6062 away from 6260, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Step 13:
If we divide 1980 by 866, we get 2 and a remainder of 248.
Record the quotient 2 as the next digit in the result. 
Result so far: 78110.13972
If we subtract 1732 from 1980, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Step 14:
866 goes into 2480 2 times with a remainder of 748.
Use 2 as the next digit of our solution. 
Result so far: 78110.139722
If we take 1732 away from 2480, we end up with 748.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7480, and continue the process.

After the division, we end up with 78110.139722 and a remainder of 7.48e-05.