620386 ÷ 51 
Let's see how many times 51 fits into 620386.

Let's proceed to step 1:
6 divided by 51 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 51

Step 2:
51 can be fit into 62 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 51 away from 62, we end up with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 51

On to step 3:
When dividing 110 by 51, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 8 after subtracting 102 from 110.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 51

Going ahead to step 4:
When dividing 83 by 51, we get 1 with a remainder of 32.
The next digit of our result is 1. 
Result so far: 121.0
The remainder is 32 after subtracting 51 from 83.
Take the next digit (8) from the dividend and append it to 32, then repeat: 328 / 51

On to step 5:
The number 51 fits into 328 6 times, leaving a remainder of 22.
The next digit of our result is 6. 
Result so far: 1216.0
If we take 306 away from 328, we end up with 22.
Append the next digit (6) from the dividend to 22 and continue with: 226 / 51

Moving on to step 6:
When dividing 226 by 51, we get 4 with a remainder of 22.
Put 4 as the next digit of the answer. 
Result so far: 12164.0
Subtract 204 from 226 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 7:
220 divided by 51 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 12164.4
If we take 204 away from 220, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
If we divide 160 by 51, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 12164.43
If we subtract 153 from 160, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
When dividing 70 by 51, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 12164.431
The remainder is 19 after subtracting 51 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 10:
When dividing 190 by 51, we get 3 with a remainder of 37.
The next digit of our result is 3. 
Result so far: 12164.4313
Deduct 153 from 190 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 11:
When dividing 370 by 51, we get 7 with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 12164.43137
Subtracting 357 from 370 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 12:
If we divide 130 by 51, we get 2 and a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 12164.431372
If we subtract 102 from 130, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 13:
51 can be fit into 280 5 times, resulting in a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 12164.4313725
If we take 255 away from 280, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 14:
The number 51 fits into 250 4 times, leaving a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 12164.43137254
If we subtract 204 from 250, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

In conclusion, the division gives 12164.43137254 with a balance of 4.6e-08.