We divide 81973985 by 821
We want to figure out the number of times 81973985 can be divided by 821.

Going ahead to step 1:
821 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.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 821

On to step 2:
When dividing 81 by 821, we get 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 821

Step 3:
821 goes into 819 0 times with a remainder of 819.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 819 after subtracting 0 from 819.
Bring next digit (7) of the dividend behind the 819 and repeat the process: 8197 / 821

Moving on to step 4:
The number 821 fits into 8197 9 times, leaving a remainder of 808.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 7389 from 8197 and we're left with 808.
Append the next digit (3) from the dividend to 808 and continue with: 8083 / 821

Advancing to step 5:
The number 821 fits into 8083 9 times, leaving a remainder of 694.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
If we take 7389 away from 8083, we end up with 694.
Fetch the next digit (9) from the dividend, attach it to 694 and continue: 6949 / 821

Advancing to step 6:
821 can be fit into 6949 8 times, resulting in a remainder of 381.
Record the quotient 8 as the next digit in the result. 
Result so far: 998.0
If we take 6568 away from 6949, we end up with 381.
Fetch the next digit (8) from the dividend, attach it to 381 and continue: 3818 / 821

Let's proceed to step 7:
If we divide 3818 by 821, we get 4 and a remainder of 534.
Record the quotient 4 as the next digit in the result. 
Result so far: 9984.0
Deduct 3284 from 3818 and we're left with 534.
Include the next digit (5) from the dividend after 534, then repeat: 5345 / 821

Going ahead to step 8:
821 can be fit into 5345 6 times, resulting in a remainder of 419.
Use 6 as the next digit of our solution. 
Result so far: 99846.0
Deduct 4926 from 5345 and we're left with 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Moving on to step 9:
The number 821 fits into 4190 5 times, leaving a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 99846.5
Deduct 4105 from 4190 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Step 10:
The number 821 fits into 850 1 times, leaving a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 99846.51
Deduct 821 from 850 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 11:
821 can be fit into 290 0 times, resulting in a remainder of 290.
Use 0 as the next digit of our solution. 
Result so far: 99846.51
If we subtract 0 from 290, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 12:
The number 821 fits into 2900 3 times, leaving a remainder of 437.
The number 3 becomes the next digit in our result. 
Result so far: 99846.5103
If we subtract 2463 from 2900, we get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Moving on to step 13:
821 can be fit into 4370 5 times, resulting in a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 99846.51035
Subtracting 4105 from 4370 leaves us 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.

Let's proceed to step 14:
821 can be fit into 2650 3 times, resulting in a remainder of 187.
The next digit of our result is 3. 
Result so far: 99846.510353
The remainder is 187 after subtracting 2463 from 2650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

On to step 15:
1870 divided by 821 is 2 with a remainder of 228.
Put 2 as the next digit of the answer. 
Result so far: 99846.5103532
If we subtract 1642 from 1870, we get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 16:
821 can be fit into 2280 2 times, resulting in a remainder of 638.
Put 2 as the next digit of the answer. 
Result so far: 99846.51035322
Deduct 1642 from 2280 and we're left with 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Our division results in 99846.51035322 with a remaining 6.38e-07.