We look at the division of 81850942 by 321 
We want to figure out the number of times 81850942 can be divided by 321.

Step 1:
321 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 321

Advancing to step 2:
321 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 321

Advancing to step 3:
The number 321 fits into 818 2 times, leaving a remainder of 176.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 642 from 818 and we're left with 176.
Append the next digit (5) from the dividend to 176 and continue with: 1765 / 321

On to step 4:
321 can be fit into 1765 5 times, resulting in a remainder of 160.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Deduct 1605 from 1765 and we're left with 160.
Grab the next digit (0) from the dividend, add it to 160, then carry on: 1600 / 321

Going ahead to step 5:
1600 divided by 321 is 4 with a remainder of 316.
Record the quotient 4 as the next digit in the result. 
Result so far: 254.0
Subtracting 1284 from 1600 leaves us with 316.
Include the next digit (9) from the dividend after 316, then repeat: 3169 / 321

Moving on to step 6:
321 goes into 3169 9 times with a remainder of 280.
The next digit of our result is 9. 
Result so far: 2549.0
Subtract 2889 from 3169 to get 280.
Fetch the next digit (4) from the dividend, attach it to 280 and continue: 2804 / 321

Let's proceed to step 7:
The number 321 fits into 2804 8 times, leaving a remainder of 236.
Record the quotient 8 as the next digit in the result. 
Result so far: 25498.0
Subtracting 2568 from 2804 leaves us with 236.
Take the next digit (2) from the dividend and append it to 236, then repeat: 2362 / 321

Advancing to step 8:
321 can be fit into 2362 7 times, resulting in a remainder of 115.
The next digit of our result is 7. 
Result so far: 254987.0
Subtracting 2247 from 2362 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Step 9:
If we divide 1150 by 321, we get 3 and a remainder of 187.
Record the quotient 3 as the next digit in the result. 
Result so far: 254987.3
The remainder is 187 after subtracting 963 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Moving on to step 10:
321 goes into 1870 5 times with a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 254987.35
If we take 1605 away from 1870, we end up with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Step 11:
The number 321 fits into 2650 8 times, leaving a remainder of 82.
Use 8 as the next digit of our solution. 
Result so far: 254987.358
If we take 2568 away from 2650, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 12:
When dividing 820 by 321, we get 2 with a remainder of 178.
Record the quotient 2 as the next digit in the result. 
Result so far: 254987.3582
Subtract 642 from 820 to get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Going ahead to step 13:
1780 divided by 321 is 5 with a remainder of 175.
Put 5 as the next digit of the answer. 
Result so far: 254987.35825
Deduct 1605 from 1780 and we're left with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

On to step 14:
When dividing 1750 by 321, we get 5 with a remainder of 145.
The next digit of our result is 5. 
Result so far: 254987.358255
If we take 1605 away from 1750, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

The final result is 254987.358255 with a remainder of 1.45e-05.