200121 divided by 64 
We want to figure out the number of times 200121 can be divided by 64.

Moving on to step 1:
64 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 64

Step 2:
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: 0.0
If we take 0 away from 20, we end up with 20.
Append the next digit (0) from the dividend to 20 and continue with: 200 / 64

Moving on to step 3:
200 divided by 64 is 3 with a remainder of 8.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 192 from 200, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 64

On to step 4:
If we divide 81 by 64, we get 1 and a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Subtract 64 from 81 to get 17.
Include the next digit (2) from the dividend after 17, then repeat: 172 / 64

Let's proceed to step 5:
64 goes into 172 2 times with a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 312.0
The remainder is 44 after subtracting 128 from 172.
Include the next digit (1) from the dividend after 44, then repeat: 441 / 64

Let's proceed to step 6:
64 goes into 441 6 times with a remainder of 57.
Record the quotient 6 as the next digit in the result. 
Result so far: 3126.0
The remainder is 57 after subtracting 384 from 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 7:
570 divided by 64 is 8 with a remainder of 58.
Put 8 as the next digit of the answer. 
Result so far: 3126.8
If we subtract 512 from 570, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 8:
580 divided by 64 is 9 with a remainder of 4.
The next digit of our result is 9. 
Result so far: 3126.89
Subtract 576 from 580 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
64 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 3126.89
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
If we divide 400 by 64, we get 6 and a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 3126.8906
If we take 384 away from 400, we end up 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 11:
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: 3126.89062
If we take 128 away from 160, we end up 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.

Advancing to step 12:
320 divided by 64 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 3126.890625
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.

On to step 13:
64 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3126.890625
Subtracting 0 from 0 leaves us 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.

On to step 14:
When dividing 0 by 64, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 3126.890625
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 3126.890625 with a remaining 0.0.