We're dividing 3899901 by 345 
Our goal is to divide 3899901 by 345.

Moving on to step 1:
345 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 345

On to step 2:
When dividing 38 by 345, we get 0 with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Fetch the next digit (9) from the dividend, attach it to 38 and continue: 389 / 345

Going ahead to step 3:
389 divided by 345 is 1 with a remainder of 44.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 44 after subtracting 345 from 389.
Bring next digit (9) of the dividend behind the 44 and repeat the process: 449 / 345

Let's proceed to step 4:
449 divided by 345 is 1 with a remainder of 104.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 345 from 449 leaves us with 104.
Take the next digit (9) from the dividend and append it to 104, then repeat: 1049 / 345

Going ahead to step 5:
345 can be fit into 1049 3 times, resulting in a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 113.0
Subtracting 1035 from 1049 leaves us with 14.
Fetch the next digit (0) from the dividend, attach it to 14 and continue: 140 / 345

Going ahead to step 6:
If we divide 140 by 345, we get 0 and a remainder of 140.
Write down 0 as next digit of the result. 
Result so far: 1130.0
If we subtract 0 from 140, we get 140.
Include the next digit (1) from the dividend after 140, then repeat: 1401 / 345

Advancing to step 7:
1401 divided by 345 is 4 with a remainder of 21.
The next digit of our result is 4. 
Result so far: 11304.0
Subtract 1380 from 1401 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 8:
If we divide 210 by 345, we get 0 and a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 11304.0
The remainder is 210 after subtracting 0 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 9:
345 can be fit into 2100 6 times, resulting in a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 11304.06
If we subtract 2070 from 2100, we 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.

Step 10:
The number 345 fits into 300 0 times, leaving a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 11304.06
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 11:
3000 divided by 345 is 8 with a remainder of 240.
The number 8 becomes the next digit in our result. 
Result so far: 11304.0608
The remainder is 240 after subtracting 2760 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 12:
2400 divided by 345 is 6 with a remainder of 330.
Record the quotient 6 as the next digit in the result. 
Result so far: 11304.06086
Subtracting 2070 from 2400 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 13:
3300 divided by 345 is 9 with a remainder of 195.
The number 9 becomes the next digit in our result. 
Result so far: 11304.060869
Deduct 3105 from 3300 and we're left with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

On to step 14:
1950 divided by 345 is 5 with a remainder of 225.
Write down 5 as next digit of the result. 
Result so far: 11304.0608695
Deduct 1725 from 1950 and we're left with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 15:
The number 345 fits into 2250 6 times, leaving a remainder of 180.
Record the quotient 6 as the next digit in the result. 
Result so far: 11304.06086956
The remainder is 180 after subtracting 2070 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

In conclusion, the division gives 11304.06086956 with a balance of 1.8e-07.