64087482 divided by 399 
We want to divide 64087482 by 399.

Step 1:
6 divided by 399 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 399

On to step 2:
When dividing 64 by 399, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Take the next digit (0) from the dividend and append it to 64, then repeat: 640 / 399

Let's proceed to step 3:
640 divided by 399 is 1 with a remainder of 241.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 399 from 640, we get 241.
Append the next digit (8) from the dividend to 241 and continue with: 2418 / 399

Moving on to step 4:
The number 399 fits into 2418 6 times, leaving a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 2394 from 2418 leaves us with 24.
Fetch the next digit (7) from the dividend, attach it to 24 and continue: 247 / 399

Moving on to step 5:
When dividing 247 by 399, we get 0 with a remainder of 247.
Use 0 as the next digit of our solution. 
Result so far: 160.0
Subtracting 0 from 247 leaves us with 247.
Grab the next digit (4) from the dividend, add it to 247, then carry on: 2474 / 399

Let's proceed to step 6:
399 can be fit into 2474 6 times, resulting in a remainder of 80.
Put 6 as the next digit of the answer. 
Result so far: 1606.0
Subtract 2394 from 2474 to get 80.
Take the next digit (8) from the dividend and append it to 80, then repeat: 808 / 399

Moving on to step 7:
When dividing 808 by 399, we get 2 with a remainder of 10.
The next digit of our result is 2. 
Result so far: 16062.0
Subtract 798 from 808 to get 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 399

Advancing to step 8:
When dividing 102 by 399, we get 0 with a remainder of 102.
Write down 0 as next digit of the result. 
Result so far: 160620.0
If we take 0 away from 102, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Let's proceed to step 9:
If we divide 1020 by 399, we get 2 and a remainder of 222.
The next digit of our result is 2. 
Result so far: 160620.2
Subtracting 798 from 1020 leaves us with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Moving on to step 10:
If we divide 2220 by 399, we get 5 and a remainder of 225.
The number 5 becomes the next digit in our result. 
Result so far: 160620.25
The remainder is 225 after subtracting 1995 from 2220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Advancing to step 11:
399 goes into 2250 5 times with a remainder of 255.
Put 5 as the next digit of the answer. 
Result so far: 160620.255
Subtract 1995 from 2250 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Our division results in 160620.255 with a remaining 0.0255.