855120 ÷ 64 
We want to divide 855120 by 64.

Moving on to step 1:
64 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 64

Going ahead to step 2:
The number 64 fits into 85 1 times, leaving a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 64 away from 85, we end up with 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 64

On to step 3:
215 divided by 64 is 3 with a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 23 after subtracting 192 from 215.
Take the next digit (1) from the dividend and append it to 23, then repeat: 231 / 64

Step 4:
If we divide 231 by 64, we get 3 and a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 133.0
Deduct 192 from 231 and we're left with 39.
Bring next digit (2) of the dividend behind the 39 and repeat the process: 392 / 64

Advancing to step 5:
If we divide 392 by 64, we get 6 and a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 1336.0
If we subtract 384 from 392, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 64

Let's proceed to step 6:
If we divide 80 by 64, we get 1 and a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 13361.0
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.

On to step 7:
64 can be fit into 160 2 times, resulting in a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 13361.2
Deduct 128 from 160 and we're left 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.

Step 8:
If we divide 320 by 64, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 13361.25
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 9:
The number 64 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 13361.25
Deduct 0 from 0 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.

Let's proceed to step 10:
64 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 13361.25
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.

Our division results in 13361.25 with a remaining 0.0.