We look at the division of 421651 by 64 
We want to figure out the number of times 421651 can be divided by 64.

On to step 1:
When dividing 4 by 64, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 64

Going ahead to step 2:
42 divided by 64 is 0 with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Fetch the next digit (1) from the dividend, attach it to 42 and continue: 421 / 64

Step 3:
421 divided by 64 is 6 with a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtract 384 from 421 to get 37.
Append the next digit (6) from the dividend to 37 and continue with: 376 / 64

On to step 4:
The number 64 fits into 376 5 times, leaving a remainder of 56.
The next digit of our result is 5. 
Result so far: 65.0
The remainder is 56 after subtracting 320 from 376.
Bring next digit (5) of the dividend behind the 56 and repeat the process: 565 / 64

On to step 5:
64 can be fit into 565 8 times, resulting in a remainder of 53.
The number 8 becomes the next digit in our result. 
Result so far: 658.0
Subtracting 512 from 565 leaves us with 53.
Take the next digit (1) from the dividend and append it to 53, then repeat: 531 / 64

Advancing to step 6:
If we divide 531 by 64, we get 8 and a remainder of 19.
The number 8 becomes the next digit in our result. 
Result so far: 6588.0
Deduct 512 from 531 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.

Advancing to step 7:
If we divide 190 by 64, we get 2 and a remainder of 62.
The next digit of our result is 2. 
Result so far: 6588.2
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.

Moving on to step 8:
64 goes into 620 9 times with a remainder of 44.
Record the quotient 9 as the next digit in the result. 
Result so far: 6588.29
Subtract 576 from 620 to get 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 9:
440 divided by 64 is 6 with a remainder of 56.
Record the quotient 6 as the next digit in the result. 
Result so far: 6588.296
The remainder is 56 after subtracting 384 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 10:
560 divided by 64 is 8 with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 6588.2968
Subtracting 512 from 560 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.

Moving on to step 11:
The number 64 fits into 480 7 times, leaving a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 6588.29687
Subtracting 448 from 480 leaves us 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 12:
320 divided by 64 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 6588.296875
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.

Going ahead to step 13:
If we divide 0 by 64, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 6588.296875
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.

Step 14:
The number 64 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6588.296875
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.

Our division results in 6588.296875 with a remaining 0.0.