399152 divided by 64 
We're looking to find how many times 64 goes into 399152.

Moving on to step 1:
3 divided by 64 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 64

Let's proceed to step 2:
64 can be fit into 39 0 times, resulting in a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 64

Advancing to step 3:
If we divide 399 by 64, we get 6 and a remainder of 15.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 384 from 399 and we're left with 15.
Grab the next digit (1) from the dividend, add it to 15, then carry on: 151 / 64

Step 4:
The number 64 fits into 151 2 times, leaving a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 62.0
Deduct 128 from 151 and we're left with 23.
Take the next digit (5) from the dividend and append it to 23, then repeat: 235 / 64

Step 5:
The number 64 fits into 235 3 times, leaving a remainder of 43.
The number 3 becomes the next digit in our result. 
Result so far: 623.0
Subtracting 192 from 235 leaves us with 43.
Fetch the next digit (2) from the dividend, attach it to 43 and continue: 432 / 64

Let's proceed to step 6:
The number 64 fits into 432 6 times, leaving a remainder of 48.
The number 6 becomes the next digit in our result. 
Result so far: 6236.0
Subtract 384 from 432 to 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 7:
64 goes into 480 7 times with a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 6236.7
If we take 448 away from 480, 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.

Going ahead to step 8:
If we divide 320 by 64, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 6236.75
The remainder is 0 after subtracting 320 from 320.
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 9:
The number 64 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 6236.75
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.

Advancing to step 10:
64 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 6236.75
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.

The final outcome is 6236.75, with a leftover of 0.0.