We're dividing 82157894 by 90 
We want to divide 82157894 by 90.

Step 1:
90 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 90

On to step 2:
The number 90 fits into 82 0 times, leaving a remainder of 82.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 82, we end up with 82.
Append the next digit (1) from the dividend to 82 and continue with: 821 / 90

On to step 3:
If we divide 821 by 90, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 810 away from 821, we end up with 11.
Grab the next digit (5) from the dividend, add it to 11, then carry on: 115 / 90

Advancing to step 4:
90 can be fit into 115 1 times, resulting in a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Subtracting 90 from 115 leaves us with 25.
Bring next digit (7) of the dividend behind the 25 and repeat the process: 257 / 90

Step 5:
The number 90 fits into 257 2 times, leaving a remainder of 77.
The number 2 becomes the next digit in our result. 
Result so far: 912.0
Deduct 180 from 257 and we're left with 77.
Include the next digit (8) from the dividend after 77, then repeat: 778 / 90

Advancing to step 6:
90 can be fit into 778 8 times, resulting in a remainder of 58.
Write down 8 as next digit of the result. 
Result so far: 9128.0
If we subtract 720 from 778, we get 58.
Append the next digit (9) from the dividend to 58 and continue with: 589 / 90

Going ahead to step 7:
The number 90 fits into 589 6 times, leaving a remainder of 49.
Put 6 as the next digit of the answer. 
Result so far: 91286.0
If we subtract 540 from 589, we get 49.
Include the next digit (4) from the dividend after 49, then repeat: 494 / 90

On to step 8:
When dividing 494 by 90, we get 5 with a remainder of 44.
Use 5 as the next digit of our solution. 
Result so far: 912865.0
If we subtract 450 from 494, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 9:
90 goes into 440 4 times with a remainder of 80.
The number 4 becomes the next digit in our result. 
Result so far: 912865.4
The remainder is 80 after subtracting 360 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 10:
90 goes into 800 8 times with a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 912865.48
If we take 720 away from 800, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 11:
The number 90 fits into 800 8 times, leaving a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 912865.488
Deduct 720 from 800 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 912865.488, with a leftover of 0.008.