Let's divide 64325173 by 866
We want to divide 64325173 by 866.

On to step 1:
The number 866 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 866

Step 2:
The number 866 fits into 64 0 times, leaving a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Grab the next digit (3) from the dividend, add it to 64, then carry on: 643 / 866

Moving on to step 3:
The number 866 fits into 643 0 times, leaving a remainder of 643.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 643 to get 643.
Include the next digit (2) from the dividend after 643, then repeat: 6432 / 866

Moving on to step 4:
When dividing 6432 by 866, we get 7 with a remainder of 370.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 6062 from 6432 to get 370.
Grab the next digit (5) from the dividend, add it to 370, then carry on: 3705 / 866

Let's proceed to step 5:
3705 divided by 866 is 4 with a remainder of 241.
Use 4 as the next digit of our solution. 
Result so far: 74.0
If we subtract 3464 from 3705, we get 241.
Bring next digit (1) of the dividend behind the 241 and repeat the process: 2411 / 866

Moving on to step 6:
When dividing 2411 by 866, we get 2 with a remainder of 679.
The number 2 becomes the next digit in our result. 
Result so far: 742.0
Subtract 1732 from 2411 to get 679.
Include the next digit (7) from the dividend after 679, then repeat: 6797 / 866

Advancing to step 7:
The number 866 fits into 6797 7 times, leaving a remainder of 735.
Write down 7 as next digit of the result. 
Result so far: 7427.0
If we subtract 6062 from 6797, we get 735.
Append the next digit (3) from the dividend to 735 and continue with: 7353 / 866

Let's proceed to step 8:
866 can be fit into 7353 8 times, resulting in a remainder of 425.
The next digit of our result is 8. 
Result so far: 74278.0
The remainder is 425 after subtracting 6928 from 7353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Let's proceed to step 9:
866 can be fit into 4250 4 times, resulting in a remainder of 786.
Record the quotient 4 as the next digit in the result. 
Result so far: 74278.4
Subtract 3464 from 4250 to get 786.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7860, and continue the process.

Advancing to step 10:
866 goes into 7860 9 times with a remainder of 66.
The number 9 becomes the next digit in our result. 
Result so far: 74278.49
The remainder is 66 after subtracting 7794 from 7860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 11:
866 can be fit into 660 0 times, resulting in a remainder of 660.
Write down 0 as next digit of the result. 
Result so far: 74278.49
The remainder is 660 after subtracting 0 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Going ahead to step 12:
If we divide 6600 by 866, we get 7 and a remainder of 538.
The number 7 becomes the next digit in our result. 
Result so far: 74278.4907
The remainder is 538 after subtracting 6062 from 6600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Let's proceed to step 13:
866 goes into 5380 6 times with a remainder of 184.
The next digit of our result is 6. 
Result so far: 74278.49076
If we subtract 5196 from 5380, 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.

Going ahead to step 14:
1840 divided by 866 is 2 with a remainder of 108.
Use 2 as the next digit of our solution. 
Result so far: 74278.490762
Deduct 1732 from 1840 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 15:
866 can be fit into 1080 1 times, resulting in a remainder of 214.
Put 1 as the next digit of the answer. 
Result so far: 74278.4907621
If we take 866 away from 1080, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Step 16:
866 can be fit into 2140 2 times, resulting in a remainder of 408.
Put 2 as the next digit of the answer. 
Result so far: 74278.49076212
If we take 1732 away from 2140, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

The final result is 74278.49076212 with a remainder of 4.08e-07.