We divide 3902 by 46
Our goal is to divide 3902 by 46.

Advancing to step 1:
3 divided by 46 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 46

On to step 2:
46 goes into 39 0 times with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Include the next digit (0) from the dividend after 39, then repeat: 390 / 46

Going ahead to step 3:
If we divide 390 by 46, we get 8 and a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 368 from 390 to get 22.
Include the next digit (2) from the dividend after 22, then repeat: 222 / 46

Advancing to step 4:
The number 46 fits into 222 4 times, leaving a remainder of 38.
The next digit of our result is 4. 
Result so far: 84.0
Deduct 184 from 222 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 5:
46 can be fit into 380 8 times, resulting in a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 84.8
If we take 368 away from 380, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 6:
120 divided by 46 is 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 84.82
Subtracting 92 from 120 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
46 can be fit into 280 6 times, resulting in a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 84.826
Deduct 276 from 280 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
46 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 84.826
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
If we divide 400 by 46, we get 8 and a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 84.82608
Deduct 368 from 400 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
The number 46 fits into 320 6 times, leaving a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 84.826086
Subtract 276 from 320 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 11:
The number 46 fits into 440 9 times, leaving a remainder of 26.
The next digit of our result is 9. 
Result so far: 84.8260869
Subtract 414 from 440 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 12:
260 divided by 46 is 5 with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 84.82608695
Subtract 230 from 260 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 84.82608695 with a remainder of 3e-08.