We divide 850390 by 64
We're looking to find how many times 64 goes into 850390.

Going ahead to step 1:
8 divided by 64 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 64

Moving on to step 2:
If we divide 85 by 64, we get 1 and a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 64 from 85, we get 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 64

Step 3:
The number 64 fits into 210 3 times, leaving a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 18 after subtracting 192 from 210.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 64

On to step 4:
183 divided by 64 is 2 with a remainder of 55.
The number 2 becomes the next digit in our result. 
Result so far: 132.0
Subtracting 128 from 183 leaves us with 55.
Grab the next digit (9) from the dividend, add it to 55, then carry on: 559 / 64

Advancing to step 5:
64 can be fit into 559 8 times, resulting in a remainder of 47.
Write down 8 as next digit of the result. 
Result so far: 1328.0
Subtract 512 from 559 to get 47.
Take the next digit (0) from the dividend and append it to 47, then repeat: 470 / 64

Going ahead to step 6:
64 can be fit into 470 7 times, resulting in a remainder of 22.
The next digit of our result is 7. 
Result so far: 13287.0
Subtract 448 from 470 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 7:
64 can be fit into 220 3 times, resulting in a remainder of 28.
The next digit of our result is 3. 
Result so far: 13287.3
The remainder is 28 after subtracting 192 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 8:
If we divide 280 by 64, we get 4 and a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 13287.34
Subtracting 256 from 280 leaves us 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.

Going ahead to step 9:
If we divide 240 by 64, we get 3 and a remainder of 48.
The number 3 becomes the next digit in our result. 
Result so far: 13287.343
Subtract 192 from 240 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 10:
If we divide 480 by 64, we get 7 and a remainder of 32.
The next digit of our result is 7. 
Result so far: 13287.3437
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.

Advancing to step 11:
The number 64 fits into 320 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 13287.34375
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 12:
64 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13287.34375
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.

Going ahead to step 13:
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: 13287.34375
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.

In conclusion, the division gives 13287.34375 with a balance of 0.0.