Let's divide 51419327 by 81
We want to divide 51419327 by 81.

On to step 1:
81 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 81

Going ahead to step 2:
51 divided by 81 is 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Bring next digit (4) of the dividend behind the 51 and repeat the process: 514 / 81

Advancing to step 3:
81 can be fit into 514 6 times, resulting in a remainder of 28.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 486 from 514, we get 28.
Bring next digit (1) of the dividend behind the 28 and repeat the process: 281 / 81

On to step 4:
81 goes into 281 3 times with a remainder of 38.
Use 3 as the next digit of our solution. 
Result so far: 63.0
If we subtract 243 from 281, we get 38.
Take the next digit (9) from the dividend and append it to 38, then repeat: 389 / 81

Step 5:
81 goes into 389 4 times with a remainder of 65.
The number 4 becomes the next digit in our result. 
Result so far: 634.0
If we take 324 away from 389, we end up with 65.
Append the next digit (3) from the dividend to 65 and continue with: 653 / 81

Step 6:
The number 81 fits into 653 8 times, leaving a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 6348.0
Deduct 648 from 653 and we're left with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 81

On to step 7:
81 goes into 52 0 times with a remainder of 52.
The next digit of our result is 0. 
Result so far: 63480.0
If we take 0 away from 52, we end up with 52.
Append the next digit (7) from the dividend to 52 and continue with: 527 / 81

Let's proceed to step 8:
527 divided by 81 is 6 with a remainder of 41.
Put 6 as the next digit of the answer. 
Result so far: 634806.0
If we take 486 away from 527, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 9:
81 goes into 410 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 634806.5
Subtracting 405 from 410 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 10:
When dividing 50 by 81, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 634806.5
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 11:
81 goes into 500 6 times with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 634806.506
The remainder is 14 after subtracting 486 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 12:
140 divided by 81 is 1 with a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 634806.5061
Subtract 81 from 140 to 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.

Let's proceed to step 13:
81 goes into 590 7 times with a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 634806.50617
The remainder is 23 after subtracting 567 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 14:
When dividing 230 by 81, we get 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 634806.506172
If we subtract 162 from 230, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 15:
81 goes into 680 8 times with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 634806.5061728
Subtract 648 from 680 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 16:
81 can be fit into 320 3 times, resulting in a remainder of 77.
The next digit of our result is 3. 
Result so far: 634806.50617283
Subtract 243 from 320 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

After the division, we end up with 634806.50617283 and a remainder of 7.7e-08.