39870 divided by 64 
We're looking to find how many times 64 goes into 39870.

Let's proceed to step 1:
The number 64 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 64

Moving on to step 2:
39 divided by 64 is 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Include the next digit (8) from the dividend after 39, then repeat: 398 / 64

Advancing to step 3:
398 divided by 64 is 6 with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 384 from 398 leaves us with 14.
Fetch the next digit (7) from the dividend, attach it to 14 and continue: 147 / 64

Going ahead to step 4:
64 can be fit into 147 2 times, resulting in a remainder of 19.
The next digit of our result is 2. 
Result so far: 62.0
Subtract 128 from 147 to get 19.
Take the next digit (0) from the dividend and append it to 19, then repeat: 190 / 64

Going ahead to step 5:
64 can be fit into 190 2 times, resulting in a remainder of 62.
Use 2 as the next digit of our solution. 
Result so far: 622.0
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 6:
When dividing 620 by 64, we get 9 with a remainder of 44.
Put 9 as the next digit of the answer. 
Result so far: 622.9
Subtracting 576 from 620 leaves us 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.

Step 7:
If we divide 440 by 64, we get 6 and a remainder of 56.
The next digit of our result is 6. 
Result so far: 622.96
If we take 384 away from 440, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 8:
64 can be fit into 560 8 times, resulting in a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 622.968
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.

Going ahead to step 9:
480 divided by 64 is 7 with a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 622.9687
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.

Moving on to step 10:
If we divide 320 by 64, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 622.96875
Deduct 320 from 320 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.

Advancing to step 11:
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: 622.96875
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.

Moving on to step 12:
64 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 622.96875
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.

The final result is 622.96875 with a remainder of 0.0.