Let's divide 85090397 by 243
We want to figure out the number of times 85090397 can be divided by 243.

Going ahead to step 1:
243 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 take 0 away from 8, we end up with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 243

Advancing to step 2:
243 goes into 85 0 times with a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Fetch the next digit (0) from the dividend, attach it to 85 and continue: 850 / 243

On to step 3:
243 can be fit into 850 3 times, resulting in a remainder of 121.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 729 from 850, we get 121.
Bring next digit (9) of the dividend behind the 121 and repeat the process: 1219 / 243

On to step 4:
When dividing 1219 by 243, we get 5 with a remainder of 4.
The next digit of our result is 5. 
Result so far: 35.0
If we subtract 1215 from 1219, we get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 243

Step 5:
40 divided by 243 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 350.0
Subtract 0 from 40 to get 40.
Bring next digit (3) of the dividend behind the 40 and repeat the process: 403 / 243

Moving on to step 6:
243 can be fit into 403 1 times, resulting in a remainder of 160.
Put 1 as the next digit of the answer. 
Result so far: 3501.0
Subtracting 243 from 403 leaves us with 160.
Fetch the next digit (9) from the dividend, attach it to 160 and continue: 1609 / 243

Step 7:
243 goes into 1609 6 times with a remainder of 151.
Write down 6 as next digit of the result. 
Result so far: 35016.0
If we take 1458 away from 1609, we end up with 151.
Grab the next digit (7) from the dividend, add it to 151, then carry on: 1517 / 243

Advancing to step 8:
The number 243 fits into 1517 6 times, leaving a remainder of 59.
The number 6 becomes the next digit in our result. 
Result so far: 350166.0
If we subtract 1458 from 1517, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 9:
If we divide 590 by 243, we get 2 and a remainder of 104.
The next digit of our result is 2. 
Result so far: 350166.2
Subtract 486 from 590 to get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 10:
If we divide 1040 by 243, we get 4 and a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 350166.24
Subtracting 972 from 1040 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 11:
When dividing 680 by 243, we get 2 with a remainder of 194.
The number 2 becomes the next digit in our result. 
Result so far: 350166.242
Subtracting 486 from 680 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Let's proceed to step 12:
243 goes into 1940 7 times with a remainder of 239.
The number 7 becomes the next digit in our result. 
Result so far: 350166.2427
If we subtract 1701 from 1940, we get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Let's proceed to step 13:
2390 divided by 243 is 9 with a remainder of 203.
Write down 9 as next digit of the result. 
Result so far: 350166.24279
Subtract 2187 from 2390 to get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Going ahead to step 14:
2030 divided by 243 is 8 with a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 350166.242798
If we subtract 1944 from 2030, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 15:
243 can be fit into 860 3 times, resulting in a remainder of 131.
Write down 3 as next digit of the result. 
Result so far: 350166.2427983
Deduct 729 from 860 and we're left with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Moving on to step 16:
243 can be fit into 1310 5 times, resulting in a remainder of 95.
Put 5 as the next digit of the answer. 
Result so far: 350166.24279835
Subtract 1215 from 1310 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

After the division, we end up with 350166.24279835 and a remainder of 9.5e-08.