We look at the division of 90643 by 64 
Let's see how many times 64 fits into 90643.

On to step 1:
When dividing 9 by 64, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 64

On to step 2:
90 divided by 64 is 1 with a remainder of 26.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 26 after subtracting 64 from 90.
Take the next digit (6) from the dividend and append it to 26, then repeat: 266 / 64

Going ahead to step 3:
The number 64 fits into 266 4 times, leaving a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 256 from 266 to get 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 64

Moving on to step 4:
If we divide 104 by 64, we get 1 and a remainder of 40.
Use 1 as the next digit of our solution. 
Result so far: 141.0
Deduct 64 from 104 and we're left with 40.
Include the next digit (3) from the dividend after 40, then repeat: 403 / 64

On to step 5:
64 goes into 403 6 times with a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 1416.0
Deduct 384 from 403 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 6:
When dividing 190 by 64, we get 2 with a remainder of 62.
Record the quotient 2 as the next digit in the result. 
Result so far: 1416.2
Deduct 128 from 190 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 7:
If we divide 620 by 64, we get 9 and a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 1416.29
Deduct 576 from 620 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
64 goes into 440 6 times with a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 1416.296
If we subtract 384 from 440, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 9:
If we divide 560 by 64, we get 8 and a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 1416.2968
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.

Advancing to step 10:
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: 1416.29687
The remainder is 32 after subtracting 448 from 480.
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 11:
64 can be fit into 320 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1416.296875
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.

Let's proceed to step 12:
The number 64 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1416.296875
If we subtract 0 from 0, 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 13:
0 divided by 64 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1416.296875
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 1416.296875 with a remaining 0.0.