Let's divide 3040389 by 839
We want to divide 3040389 by 839.

Advancing to step 1:
The number 839 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 839

Let's proceed to step 2:
If we divide 30 by 839, we get 0 and a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Fetch the next digit (4) from the dividend, attach it to 30 and continue: 304 / 839

Moving on to step 3:
839 can be fit into 304 0 times, resulting in a remainder of 304.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 304 leaves us with 304.
Include the next digit (0) from the dividend after 304, then repeat: 3040 / 839

Step 4:
3040 divided by 839 is 3 with a remainder of 523.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 2517 from 3040 to get 523.
Grab the next digit (3) from the dividend, add it to 523, then carry on: 5233 / 839

Going ahead to step 5:
5233 divided by 839 is 6 with a remainder of 199.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Subtracting 5034 from 5233 leaves us with 199.
Fetch the next digit (8) from the dividend, attach it to 199 and continue: 1998 / 839

Step 6:
When dividing 1998 by 839, we get 2 with a remainder of 320.
Record the quotient 2 as the next digit in the result. 
Result so far: 362.0
The remainder is 320 after subtracting 1678 from 1998.
Bring next digit (9) of the dividend behind the 320 and repeat the process: 3209 / 839

Going ahead to step 7:
3209 divided by 839 is 3 with a remainder of 692.
The number 3 becomes the next digit in our result. 
Result so far: 3623.0
Deduct 2517 from 3209 and we're left with 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6920, and continue the process.

Going ahead to step 8:
When dividing 6920 by 839, we get 8 with a remainder of 208.
The number 8 becomes the next digit in our result. 
Result so far: 3623.8
Subtracting 6712 from 6920 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 9:
When dividing 2080 by 839, we get 2 with a remainder of 402.
Record the quotient 2 as the next digit in the result. 
Result so far: 3623.82
Subtract 1678 from 2080 to get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Moving on to step 10:
If we divide 4020 by 839, we get 4 and a remainder of 664.
The number 4 becomes the next digit in our result. 
Result so far: 3623.824
If we subtract 3356 from 4020, we get 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

On to step 11:
If we divide 6640 by 839, we get 7 and a remainder of 767.
Record the quotient 7 as the next digit in the result. 
Result so far: 3623.8247
Deduct 5873 from 6640 and we're left with 767.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7670, and continue the process.

Going ahead to step 12:
If we divide 7670 by 839, we get 9 and a remainder of 119.
Put 9 as the next digit of the answer. 
Result so far: 3623.82479
Subtract 7551 from 7670 to get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

On to step 13:
If we divide 1190 by 839, we get 1 and a remainder of 351.
Put 1 as the next digit of the answer. 
Result so far: 3623.824791
If we take 839 away from 1190, we end up with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

On to step 14:
When dividing 3510 by 839, we get 4 with a remainder of 154.
Put 4 as the next digit of the answer. 
Result so far: 3623.8247914
If we take 3356 away from 3510, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Let's proceed to step 15:
1540 divided by 839 is 1 with a remainder of 701.
The number 1 becomes the next digit in our result. 
Result so far: 3623.82479141
If we take 839 away from 1540, we end up with 701.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7010, and continue the process.

In conclusion, the division gives 3623.82479141 with a balance of 7.01e-07.