21693 ÷ 64 
Let's see how many times 64 fits into 21693.

Going ahead to step 1:
2 divided by 64 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 64

Advancing to step 2:
When dividing 21 by 64, we get 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 64

On to step 3:
If we divide 216 by 64, we get 3 and a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 192 from 216, we get 24.
Grab the next digit (9) from the dividend, add it to 24, then carry on: 249 / 64

Let's proceed to step 4:
64 can be fit into 249 3 times, resulting in a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
If we take 192 away from 249, we end up with 57.
Grab the next digit (3) from the dividend, add it to 57, then carry on: 573 / 64

Step 5:
573 divided by 64 is 8 with a remainder of 61.
Use 8 as the next digit of our solution. 
Result so far: 338.0
Subtract 512 from 573 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 6:
64 goes into 610 9 times with a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 338.9
Subtract 576 from 610 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 7:
64 goes into 340 5 times with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 338.95
If we take 320 away from 340, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
64 goes into 200 3 times with a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 338.953
The remainder is 8 after subtracting 192 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
64 goes into 80 1 times with a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 338.9531
Subtracting 64 from 80 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
64 goes into 160 2 times with a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 338.95312
Deduct 128 from 160 and we're left with 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 11:
64 can be fit into 320 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 338.953125
Deduct 320 from 320 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.

Step 12:
If we divide 0 by 64, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 338.953125
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.

Step 13:
64 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 338.953125
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.

Our division results in 338.953125 with a remaining 0.0.