3421982 ÷ 390 
We want to figure out the number of times 3421982 can be divided by 390.

Moving on to step 1:
If we divide 3 by 390, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 390

Going ahead to step 2:
390 goes into 34 0 times with a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 34 to get 34.
Take the next digit (2) from the dividend and append it to 34, then repeat: 342 / 390

On to step 3:
342 divided by 390 is 0 with a remainder of 342.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 342, we get 342.
Append the next digit (1) from the dividend to 342 and continue with: 3421 / 390

Moving on to step 4:
3421 divided by 390 is 8 with a remainder of 301.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 3120 from 3421 and we're left with 301.
Bring next digit (9) of the dividend behind the 301 and repeat the process: 3019 / 390

Let's proceed to step 5:
390 goes into 3019 7 times with a remainder of 289.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Subtracting 2730 from 3019 leaves us with 289.
Append the next digit (8) from the dividend to 289 and continue with: 2898 / 390

Moving on to step 6:
390 can be fit into 2898 7 times, resulting in a remainder of 168.
Write down 7 as next digit of the result. 
Result so far: 877.0
Subtract 2730 from 2898 to get 168.
Grab the next digit (2) from the dividend, add it to 168, then carry on: 1682 / 390

Moving on to step 7:
If we divide 1682 by 390, we get 4 and a remainder of 122.
The number 4 becomes the next digit in our result. 
Result so far: 8774.0
The remainder is 122 after subtracting 1560 from 1682.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Going ahead to step 8:
If we divide 1220 by 390, we get 3 and a remainder of 50.
Use 3 as the next digit of our solution. 
Result so far: 8774.3
Deduct 1170 from 1220 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
390 goes into 500 1 times with a remainder of 110.
Write down 1 as next digit of the result. 
Result so far: 8774.31
Subtract 390 from 500 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
390 goes into 1100 2 times with a remainder of 320.
The number 2 becomes the next digit in our result. 
Result so far: 8774.312
Subtract 780 from 1100 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 11:
When dividing 3200 by 390, we get 8 with a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 8774.3128
If we subtract 3120 from 3200, 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 12:
When dividing 800 by 390, we get 2 with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 8774.31282
Subtracting 780 from 800 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
The number 390 fits into 200 0 times, leaving a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 8774.31282
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 14:
390 can be fit into 2000 5 times, resulting in a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 8774.3128205
If we subtract 1950 from 2000, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 15:
500 divided by 390 is 1 with a remainder of 110.
Record the quotient 1 as the next digit in the result. 
Result so far: 8774.31282051
The remainder is 110 after subtracting 390 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

In conclusion, the division gives 8774.31282051 with a balance of 1.1e-07.