Let's divide 122399 by 64
We want to divide 122399 by 64.

Advancing to step 1:
64 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 64

Moving on to step 2:
When dividing 12 by 64, we get 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 64

Let's proceed to step 3:
The number 64 fits into 122 1 times, leaving a remainder of 58.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 64 from 122, we get 58.
Take the next digit (3) from the dividend and append it to 58, then repeat: 583 / 64

Advancing to step 4:
64 goes into 583 9 times with a remainder of 7.
The next digit of our result is 9. 
Result so far: 19.0
The remainder is 7 after subtracting 576 from 583.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 64

On to step 5:
If we divide 79 by 64, we get 1 and a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 191.0
If we subtract 64 from 79, we get 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 64

Going ahead to step 6:
When dividing 159 by 64, we get 2 with a remainder of 31.
The next digit of our result is 2. 
Result so far: 1912.0
The remainder is 31 after subtracting 128 from 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
When dividing 310 by 64, we get 4 with a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 1912.4
Subtract 256 from 310 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 8:
When dividing 540 by 64, we get 8 with a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 1912.48
The remainder is 28 after subtracting 512 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
64 can be fit into 280 4 times, resulting in a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 1912.484
If we subtract 256 from 280, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
64 can be fit into 240 3 times, resulting in a remainder of 48.
Record the quotient 3 as the next digit in the result. 
Result so far: 1912.4843
Subtracting 192 from 240 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.

Going ahead to step 11:
480 divided by 64 is 7 with a remainder of 32.
The next digit of our result is 7. 
Result so far: 1912.48437
If we subtract 448 from 480, we get 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:
If we divide 320 by 64, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1912.484375
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.

Advancing to step 13:
The number 64 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1912.484375
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.

Step 14:
64 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1912.484375
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.

After the division, we end up with 1912.484375 and a remainder of 0.0.