We look at the division of 309997 by 64 
We want to figure out the number of times 309997 can be divided by 64.

Advancing to step 1:
64 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 64

Moving on to step 2:
When dividing 30 by 64, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Grab the next digit (9) from the dividend, add it to 30, then carry on: 309 / 64

Step 3:
64 goes into 309 4 times with a remainder of 53.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 256 away from 309, we end up with 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 64

Going ahead to step 4:
64 can be fit into 539 8 times, resulting in a remainder of 27.
Write down 8 as next digit of the result. 
Result so far: 48.0
Subtract 512 from 539 to get 27.
Take the next digit (9) from the dividend and append it to 27, then repeat: 279 / 64

Let's proceed to step 5:
279 divided by 64 is 4 with a remainder of 23.
The number 4 becomes the next digit in our result. 
Result so far: 484.0
Deduct 256 from 279 and we're left with 23.
Fetch the next digit (7) from the dividend, attach it to 23 and continue: 237 / 64

Let's proceed to step 6:
If we divide 237 by 64, we get 3 and a remainder of 45.
The number 3 becomes the next digit in our result. 
Result so far: 4843.0
If we subtract 192 from 237, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 7:
When dividing 450 by 64, we get 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 4843.7
If we take 448 away from 450, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
64 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 4843.7
Subtract 0 from 20 to get 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 9:
When dividing 200 by 64, we get 3 with a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 4843.703
Subtracting 192 from 200 leaves us 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.

Let's proceed to step 10:
When dividing 80 by 64, we get 1 with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 4843.7031
Subtract 64 from 80 to 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 11:
64 can be fit into 160 2 times, resulting in a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 4843.70312
Subtract 128 from 160 to 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.

Let's proceed to step 12:
The number 64 fits into 320 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4843.703125
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.

Let's proceed 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: 4843.703125
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 14:
64 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4843.703125
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.

The final result is 4843.703125 with a remainder of 0.0.