813983 ÷ 64 
We want to figure out the number of times 813983 can be divided by 64.

Going ahead to step 1:
8 divided by 64 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 64

On to step 2:
64 goes into 81 1 times with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 64 away from 81, we end up with 17.
Append the next digit (3) from the dividend to 17 and continue with: 173 / 64

Moving on to step 3:
When dividing 173 by 64, we get 2 with a remainder of 45.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 128 from 173, we get 45.
Bring next digit (9) of the dividend behind the 45 and repeat the process: 459 / 64

Advancing to step 4:
64 goes into 459 7 times with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Subtracting 448 from 459 leaves us with 11.
Include the next digit (8) from the dividend after 11, then repeat: 118 / 64

Moving on to step 5:
If we divide 118 by 64, we get 1 and a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 1271.0
If we subtract 64 from 118, we get 54.
Fetch the next digit (3) from the dividend, attach it to 54 and continue: 543 / 64

Step 6:
543 divided by 64 is 8 with a remainder of 31.
The number 8 becomes the next digit in our result. 
Result so far: 12718.0
Deduct 512 from 543 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 7:
When dividing 310 by 64, we get 4 with a remainder of 54.
The number 4 becomes the next digit in our result. 
Result so far: 12718.4
If we subtract 256 from 310, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 8:
64 can be fit into 540 8 times, resulting in a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 12718.48
The remainder is 28 after subtracting 512 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 9:
The number 64 fits into 280 4 times, leaving a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 12718.484
Subtract 256 from 280 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 10:
64 can be fit into 240 3 times, resulting in a remainder of 48.
Record the quotient 3 as the next digit in the result. 
Result so far: 12718.4843
Subtracting 192 from 240 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
When dividing 480 by 64, we get 7 with a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 12718.48437
If we subtract 448 from 480, we 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.

Going ahead to step 12:
When dividing 320 by 64, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 12718.484375
Subtract 320 from 320 to get 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.
The number 0 becomes the next digit in our result. 
Result so far: 12718.484375
Deduct 0 from 0 and we're left 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.

Going ahead to step 14:
When dividing 0 by 64, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12718.484375
Deduct 0 from 0 and we're left 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.

Our division results in 12718.484375 with a remaining 0.0.