3923904 ÷ 836 
We want to divide 3923904 by 836.

Advancing to step 1:
When dividing 3 by 836, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 836

Step 2:
When dividing 39 by 836, we get 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 836

Let's proceed to step 3:
392 divided by 836 is 0 with a remainder of 392.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 392, we get 392.
Fetch the next digit (3) from the dividend, attach it to 392 and continue: 3923 / 836

Step 4:
3923 divided by 836 is 4 with a remainder of 579.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 3344 from 3923 and we're left with 579.
Bring next digit (9) of the dividend behind the 579 and repeat the process: 5799 / 836

Let's proceed to step 5:
When dividing 5799 by 836, we get 6 with a remainder of 783.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
If we subtract 5016 from 5799, we get 783.
Include the next digit (0) from the dividend after 783, then repeat: 7830 / 836

Step 6:
836 can be fit into 7830 9 times, resulting in a remainder of 306.
The next digit of our result is 9. 
Result so far: 469.0
If we take 7524 away from 7830, we end up with 306.
Include the next digit (4) from the dividend after 306, then repeat: 3064 / 836

Going ahead to step 7:
If we divide 3064 by 836, we get 3 and a remainder of 556.
Record the quotient 3 as the next digit in the result. 
Result so far: 4693.0
Deduct 2508 from 3064 and we're left with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

On to step 8:
When dividing 5560 by 836, we get 6 with a remainder of 544.
Record the quotient 6 as the next digit in the result. 
Result so far: 4693.6
Subtracting 5016 from 5560 leaves us with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Advancing to step 9:
836 goes into 5440 6 times with a remainder of 424.
Use 6 as the next digit of our solution. 
Result so far: 4693.66
Deduct 5016 from 5440 and we're left with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

The quotient of the division is 4693.66, and the remainder is 0.424.