We're dividing 859420 by 64 
Let's see how many times 64 fits into 859420.

Going ahead to step 1:
64 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 64

Going ahead to step 2:
64 can be fit into 85 1 times, resulting in a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 64 from 85 to get 21.
Grab the next digit (9) from the dividend, add it to 21, then carry on: 219 / 64

Going ahead to step 3:
219 divided by 64 is 3 with a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 13.0
The remainder is 27 after subtracting 192 from 219.
Append the next digit (4) from the dividend to 27 and continue with: 274 / 64

On to step 4:
64 can be fit into 274 4 times, resulting in a remainder of 18.
The next digit of our result is 4. 
Result so far: 134.0
If we subtract 256 from 274, we get 18.
Fetch the next digit (2) from the dividend, attach it to 18 and continue: 182 / 64

Going ahead to step 5:
When dividing 182 by 64, we get 2 with a remainder of 54.
Write down 2 as next digit of the result. 
Result so far: 1342.0
If we take 128 away from 182, we end up with 54.
Append the next digit (0) from the dividend to 54 and continue with: 540 / 64

Advancing to step 6:
When dividing 540 by 64, we get 8 with a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 13428.0
Deduct 512 from 540 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
When dividing 280 by 64, we get 4 with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 13428.4
If we take 256 away from 280, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 8:
64 goes into 240 3 times with a remainder of 48.
Use 3 as the next digit of our solution. 
Result so far: 13428.43
The remainder is 48 after subtracting 192 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 9:
64 goes into 480 7 times with a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 13428.437
The remainder is 32 after subtracting 448 from 480.
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:
When dividing 320 by 64, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 13428.4375
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.

Moving on to step 11:
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: 13428.4375
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.

Moving on to step 12:
64 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13428.4375
Subtracting 0 from 0 leaves us 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 result is 13428.4375 with a remainder of 0.0.