We divide 64173661 by 861
We want to divide 64173661 by 861.

On to step 1:
The number 861 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 861

Step 2:
64 divided by 861 is 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (1) from the dividend to 64 and continue with: 641 / 861

On to step 3:
861 goes into 641 0 times with a remainder of 641.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 641 after subtracting 0 from 641.
Take the next digit (7) from the dividend and append it to 641, then repeat: 6417 / 861

Advancing to step 4:
861 can be fit into 6417 7 times, resulting in a remainder of 390.
The next digit of our result is 7. 
Result so far: 7.0
If we take 6027 away from 6417, we end up with 390.
Include the next digit (3) from the dividend after 390, then repeat: 3903 / 861

Moving on to step 5:
If we divide 3903 by 861, we get 4 and a remainder of 459.
Write down 4 as next digit of the result. 
Result so far: 74.0
If we subtract 3444 from 3903, we get 459.
Take the next digit (6) from the dividend and append it to 459, then repeat: 4596 / 861

On to step 6:
If we divide 4596 by 861, we get 5 and a remainder of 291.
The next digit of our result is 5. 
Result so far: 745.0
Subtracting 4305 from 4596 leaves us with 291.
Append the next digit (6) from the dividend to 291 and continue with: 2916 / 861

Advancing to step 7:
2916 divided by 861 is 3 with a remainder of 333.
Record the quotient 3 as the next digit in the result. 
Result so far: 7453.0
Deduct 2583 from 2916 and we're left with 333.
Fetch the next digit (1) from the dividend, attach it to 333 and continue: 3331 / 861

Step 8:
3331 divided by 861 is 3 with a remainder of 748.
Use 3 as the next digit of our solution. 
Result so far: 74533.0
If we subtract 2583 from 3331, we get 748.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7480, and continue the process.

Going ahead to step 9:
861 goes into 7480 8 times with a remainder of 592.
Put 8 as the next digit of the answer. 
Result so far: 74533.8
Subtracting 6888 from 7480 leaves us with 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Advancing to step 10:
The number 861 fits into 5920 6 times, leaving a remainder of 754.
Write down 6 as next digit of the result. 
Result so far: 74533.86
If we take 5166 away from 5920, we end up with 754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

On to step 11:
7540 divided by 861 is 8 with a remainder of 652.
Record the quotient 8 as the next digit in the result. 
Result so far: 74533.868
The remainder is 652 after subtracting 6888 from 7540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6520, and continue the process.

Going ahead to step 12:
6520 divided by 861 is 7 with a remainder of 493.
The next digit of our result is 7. 
Result so far: 74533.8687
Subtracting 6027 from 6520 leaves us with 493.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4930, and continue the process.

Moving on to step 13:
The number 861 fits into 4930 5 times, leaving a remainder of 625.
Record the quotient 5 as the next digit in the result. 
Result so far: 74533.86875
The remainder is 625 after subtracting 4305 from 4930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Step 14:
6250 divided by 861 is 7 with a remainder of 223.
Put 7 as the next digit of the answer. 
Result so far: 74533.868757
Subtracting 6027 from 6250 leaves us with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Advancing to step 15:
If we divide 2230 by 861, we get 2 and a remainder of 508.
Write down 2 as next digit of the result. 
Result so far: 74533.8687572
If we subtract 1722 from 2230, we get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

On to step 16:
861 can be fit into 5080 5 times, resulting in a remainder of 775.
Write down 5 as next digit of the result. 
Result so far: 74533.86875725
Subtracting 4305 from 5080 leaves us with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

The final result is 74533.86875725 with a remainder of 7.75e-07.