861083 divided by 64 
We're looking to find how many times 64 goes into 861083.

On to step 1:
64 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 64

Step 2:
86 divided by 64 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 64 from 86 leaves us with 22.
Bring next digit (1) of the dividend behind the 22 and repeat the process: 221 / 64

Advancing to step 3:
221 divided by 64 is 3 with a remainder of 29.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 192 from 221 leaves us with 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 64

On to step 4:
When dividing 290 by 64, we get 4 with a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 134.0
If we take 256 away from 290, we end up with 34.
Take the next digit (8) from the dividend and append it to 34, then repeat: 348 / 64

Let's proceed to step 5:
348 divided by 64 is 5 with a remainder of 28.
Use 5 as the next digit of our solution. 
Result so far: 1345.0
If we subtract 320 from 348, we get 28.
Grab the next digit (3) from the dividend, add it to 28, then carry on: 283 / 64

Step 6:
If we divide 283 by 64, we get 4 and a remainder of 27.
Write down 4 as next digit of the result. 
Result so far: 13454.0
If we subtract 256 from 283, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
The number 64 fits into 270 4 times, leaving a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 13454.4
If we subtract 256 from 270, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
64 goes into 140 2 times with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 13454.42
Subtracting 128 from 140 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 9:
When dividing 120 by 64, we get 1 with a remainder of 56.
Record the quotient 1 as the next digit in the result. 
Result so far: 13454.421
If we take 64 away from 120, 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 10:
64 can be fit into 560 8 times, resulting in a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 13454.4218
If we subtract 512 from 560, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 11:
64 can be fit into 480 7 times, resulting in a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 13454.42187
Subtract 448 from 480 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.

Advancing to step 12:
The number 64 fits into 320 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 13454.421875
If we take 320 away from 320, we end up 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.

Step 13:
When dividing 0 by 64, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13454.421875
If we take 0 away from 0, we end up 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.

Moving on to step 14:
When dividing 0 by 64, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 13454.421875
If we take 0 away from 0, we end up 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.

The final outcome is 13454.421875, with a leftover of 0.0.