3932492 ÷ 840 
Our goal is to divide 3932492 by 840.

Step 1:
3 divided by 840 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 840

Step 2:
The number 840 fits into 39 0 times, leaving a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 840

Let's proceed to step 3:
840 goes into 393 0 times with a remainder of 393.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 393 leaves us with 393.
Take the next digit (2) from the dividend and append it to 393, then repeat: 3932 / 840

Moving on to step 4:
If we divide 3932 by 840, we get 4 and a remainder of 572.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 3360 from 3932 and we're left with 572.
Grab the next digit (4) from the dividend, add it to 572, then carry on: 5724 / 840

On to step 5:
When dividing 5724 by 840, we get 6 with a remainder of 684.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Subtracting 5040 from 5724 leaves us with 684.
Append the next digit (9) from the dividend to 684 and continue with: 6849 / 840

Going ahead to step 6:
When dividing 6849 by 840, we get 8 with a remainder of 129.
Use 8 as the next digit of our solution. 
Result so far: 468.0
The remainder is 129 after subtracting 6720 from 6849.
Append the next digit (2) from the dividend to 129 and continue with: 1292 / 840

Let's proceed to step 7:
840 can be fit into 1292 1 times, resulting in a remainder of 452.
Use 1 as the next digit of our solution. 
Result so far: 4681.0
If we take 840 away from 1292, we end up with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Step 8:
840 goes into 4520 5 times with a remainder of 320.
Use 5 as the next digit of our solution. 
Result so far: 4681.5
Deduct 4200 from 4520 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 9:
If we divide 3200 by 840, we get 3 and a remainder of 680.
Record the quotient 3 as the next digit in the result. 
Result so far: 4681.53
Subtract 2520 from 3200 to get 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Step 10:
If we divide 6800 by 840, we get 8 and a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 4681.538
If we subtract 6720 from 6800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 11:
When dividing 800 by 840, we get 0 with a remainder of 800.
The next digit of our result is 0. 
Result so far: 4681.538
Subtracting 0 from 800 leaves us with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Going ahead to step 12:
8000 divided by 840 is 9 with a remainder of 440.
The number 9 becomes the next digit in our result. 
Result so far: 4681.53809
If we subtract 7560 from 8000, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Advancing to step 13:
The number 840 fits into 4400 5 times, leaving a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 4681.538095
If we take 4200 away from 4400, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 14:
The number 840 fits into 2000 2 times, leaving a remainder of 320.
Write down 2 as next digit of the result. 
Result so far: 4681.5380952
The remainder is 320 after subtracting 1680 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 15:
The number 840 fits into 3200 3 times, leaving a remainder of 680.
Use 3 as the next digit of our solution. 
Result so far: 4681.53809523
If we take 2520 away from 3200, we end up with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

The final result is 4681.53809523 with a remainder of 6.8e-07.