We divide 85319821 by 90
Let's see how many times 90 fits into 85319821.

Let's proceed to step 1:
90 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 90

Moving on to step 2:
When dividing 85 by 90, we get 0 with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Take the next digit (3) from the dividend and append it to 85, then repeat: 853 / 90

Advancing to step 3:
90 can be fit into 853 9 times, resulting in a remainder of 43.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 810 from 853 and we're left with 43.
Fetch the next digit (1) from the dividend, attach it to 43 and continue: 431 / 90

On to step 4:
90 can be fit into 431 4 times, resulting in a remainder of 71.
Put 4 as the next digit of the answer. 
Result so far: 94.0
If we take 360 away from 431, we end up with 71.
Take the next digit (9) from the dividend and append it to 71, then repeat: 719 / 90

Moving on to step 5:
90 can be fit into 719 7 times, resulting in a remainder of 89.
The number 7 becomes the next digit in our result. 
Result so far: 947.0
If we take 630 away from 719, we end up with 89.
Append the next digit (8) from the dividend to 89 and continue with: 898 / 90

Step 6:
The number 90 fits into 898 9 times, leaving a remainder of 88.
The next digit of our result is 9. 
Result so far: 9479.0
If we take 810 away from 898, we end up with 88.
Take the next digit (2) from the dividend and append it to 88, then repeat: 882 / 90

Step 7:
The number 90 fits into 882 9 times, leaving a remainder of 72.
Put 9 as the next digit of the answer. 
Result so far: 94799.0
The remainder is 72 after subtracting 810 from 882.
Take the next digit (1) from the dividend and append it to 72, then repeat: 721 / 90

Step 8:
The number 90 fits into 721 8 times, leaving a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 947998.0
If we subtract 720 from 721, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
The number 90 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 947998.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
90 goes into 100 1 times with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 947998.01
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
90 goes into 100 1 times with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 947998.011
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 947998.011 with a balance of 0.001.