We look at the division of 643266 by 64 
Our goal is to divide 643266 by 64.

Step 1:
6 divided by 64 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 64

Let's proceed to step 2:
If we divide 64 by 64, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 64 from 64 to get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 64

On to step 3:
If we divide 3 by 64, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 64

Step 4:
If we divide 32 by 64, we get 0 and a remainder of 32.
Use 0 as the next digit of our solution. 
Result so far: 100.0
Subtract 0 from 32 to get 32.
Fetch the next digit (6) from the dividend, attach it to 32 and continue: 326 / 64

Moving on to step 5:
64 can be fit into 326 5 times, resulting in a remainder of 6.
The next digit of our result is 5. 
Result so far: 1005.0
If we subtract 320 from 326, we get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 64

Let's proceed to step 6:
64 can be fit into 66 1 times, resulting in a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 10051.0
Subtract 64 from 66 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
The number 64 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 10051.0
Deduct 0 from 20 and we're left 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:
The number 64 fits into 200 3 times, leaving a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 10051.03
Deduct 192 from 200 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
80 divided by 64 is 1 with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 10051.031
If we subtract 64 from 80, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
When dividing 160 by 64, we get 2 with a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 10051.0312
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.

Step 11:
The number 64 fits into 320 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 10051.03125
If we subtract 320 from 320, we 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.

Moving on to step 12:
64 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 10051.03125
Subtract 0 from 0 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.

Let's proceed to step 13:
64 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10051.03125
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 10051.03125 and a remainder of 0.0.