Let's divide 73771378 by 821
We want to divide 73771378 by 821.

Going ahead to step 1:
The number 821 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 821

Let's proceed to step 2:
The number 821 fits into 73 0 times, leaving a remainder of 73.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Fetch the next digit (7) from the dividend, attach it to 73 and continue: 737 / 821

Let's proceed to step 3:
821 can be fit into 737 0 times, resulting in a remainder of 737.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 737 and we're left with 737.
Take the next digit (7) from the dividend and append it to 737, then repeat: 7377 / 821

Let's proceed to step 4:
When dividing 7377 by 821, we get 8 with a remainder of 809.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 6568 from 7377 to get 809.
Grab the next digit (1) from the dividend, add it to 809, then carry on: 8091 / 821

On to step 5:
821 can be fit into 8091 9 times, resulting in a remainder of 702.
Write down 9 as next digit of the result. 
Result so far: 89.0
Subtract 7389 from 8091 to get 702.
Include the next digit (3) from the dividend after 702, then repeat: 7023 / 821

Moving on to step 6:
821 can be fit into 7023 8 times, resulting in a remainder of 455.
The next digit of our result is 8. 
Result so far: 898.0
Subtracting 6568 from 7023 leaves us with 455.
Include the next digit (7) from the dividend after 455, then repeat: 4557 / 821

Going ahead to step 7:
When dividing 4557 by 821, we get 5 with a remainder of 452.
Use 5 as the next digit of our solution. 
Result so far: 8985.0
Subtract 4105 from 4557 to get 452.
Bring next digit (8) of the dividend behind the 452 and repeat the process: 4528 / 821

Let's proceed to step 8:
The number 821 fits into 4528 5 times, leaving a remainder of 423.
Record the quotient 5 as the next digit in the result. 
Result so far: 89855.0
Subtracting 4105 from 4528 leaves us with 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

On to step 9:
The number 821 fits into 4230 5 times, leaving a remainder of 125.
Use 5 as the next digit of our solution. 
Result so far: 89855.5
If we subtract 4105 from 4230, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 10:
821 can be fit into 1250 1 times, resulting in a remainder of 429.
The number 1 becomes the next digit in our result. 
Result so far: 89855.51
Subtract 821 from 1250 to get 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

On to step 11:
4290 divided by 821 is 5 with a remainder of 185.
Put 5 as the next digit of the answer. 
Result so far: 89855.515
Subtract 4105 from 4290 to get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 12:
821 goes into 1850 2 times with a remainder of 208.
Use 2 as the next digit of our solution. 
Result so far: 89855.5152
The remainder is 208 after subtracting 1642 from 1850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Going ahead to step 13:
If we divide 2080 by 821, we get 2 and a remainder of 438.
The number 2 becomes the next digit in our result. 
Result so far: 89855.51522
Deduct 1642 from 2080 and we're left with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

After the division, we end up with 89855.51522 and a remainder of 0.000438.