51225788 divided by 820 
Our goal is to divide 51225788 by 820.

Let's proceed to step 1:
If we divide 5 by 820, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 820

Going ahead to step 2:
If we divide 51 by 820, we get 0 and a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Fetch the next digit (2) from the dividend, attach it to 51 and continue: 512 / 820

Advancing to step 3:
If we divide 512 by 820, we get 0 and a remainder of 512.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 512, we end up with 512.
Grab the next digit (2) from the dividend, add it to 512, then carry on: 5122 / 820

On to step 4:
The number 820 fits into 5122 6 times, leaving a remainder of 202.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 4920 from 5122 leaves us with 202.
Bring next digit (5) of the dividend behind the 202 and repeat the process: 2025 / 820

Going ahead to step 5:
If we divide 2025 by 820, we get 2 and a remainder of 385.
Write down 2 as next digit of the result. 
Result so far: 62.0
If we subtract 1640 from 2025, we get 385.
Append the next digit (7) from the dividend to 385 and continue with: 3857 / 820

Step 6:
820 can be fit into 3857 4 times, resulting in a remainder of 577.
Record the quotient 4 as the next digit in the result. 
Result so far: 624.0
If we take 3280 away from 3857, we end up with 577.
Include the next digit (8) from the dividend after 577, then repeat: 5778 / 820

Let's proceed to step 7:
820 can be fit into 5778 7 times, resulting in a remainder of 38.
The next digit of our result is 7. 
Result so far: 6247.0
If we take 5740 away from 5778, we end up with 38.
Include the next digit (8) from the dividend after 38, then repeat: 388 / 820

Going ahead to step 8:
If we divide 388 by 820, we get 0 and a remainder of 388.
The number 0 becomes the next digit in our result. 
Result so far: 62470.0
If we subtract 0 from 388, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 9:
The number 820 fits into 3880 4 times, leaving a remainder of 600.
Write down 4 as next digit of the result. 
Result so far: 62470.4
If we take 3280 away from 3880, we end up with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 10:
The number 820 fits into 6000 7 times, leaving a remainder of 260.
The next digit of our result is 7. 
Result so far: 62470.47
Deduct 5740 from 6000 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 11:
When dividing 2600 by 820, we get 3 with a remainder of 140.
The next digit of our result is 3. 
Result so far: 62470.473
Subtract 2460 from 2600 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 12:
1400 divided by 820 is 1 with a remainder of 580.
Use 1 as the next digit of our solution. 
Result so far: 62470.4731
If we subtract 820 from 1400, we get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

On to step 13:
820 goes into 5800 7 times with a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 62470.47317
Deduct 5740 from 5800 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 14:
If we divide 600 by 820, we get 0 and a remainder of 600.
The next digit of our result is 0. 
Result so far: 62470.47317
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 15:
When dividing 6000 by 820, we get 7 with a remainder of 260.
Write down 7 as next digit of the result. 
Result so far: 62470.4731707
Subtract 5740 from 6000 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 16:
If we divide 2600 by 820, we get 3 and a remainder of 140.
Put 3 as the next digit of the answer. 
Result so far: 62470.47317073
If we take 2460 away from 2600, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The final outcome is 62470.47317073, with a leftover of 1.4e-07.