We divide 3869665 by 310
We want to figure out the number of times 3869665 can be divided by 310.

Let's proceed to step 1:
310 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 310

Advancing to step 2:
If we divide 38 by 310, we get 0 and a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 38, we end up with 38.
Bring next digit (6) of the dividend behind the 38 and repeat the process: 386 / 310

Moving on to step 3:
310 can be fit into 386 1 times, resulting in a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 310 away from 386, we end up with 76.
Fetch the next digit (9) from the dividend, attach it to 76 and continue: 769 / 310

Let's proceed to step 4:
If we divide 769 by 310, we get 2 and a remainder of 149.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 620 from 769 and we're left with 149.
Fetch the next digit (6) from the dividend, attach it to 149 and continue: 1496 / 310

Going ahead to step 5:
If we divide 1496 by 310, we get 4 and a remainder of 256.
Put 4 as the next digit of the answer. 
Result so far: 124.0
Subtracting 1240 from 1496 leaves us with 256.
Fetch the next digit (6) from the dividend, attach it to 256 and continue: 2566 / 310

Step 6:
If we divide 2566 by 310, we get 8 and a remainder of 86.
Write down 8 as next digit of the result. 
Result so far: 1248.0
If we subtract 2480 from 2566, we get 86.
Bring next digit (5) of the dividend behind the 86 and repeat the process: 865 / 310

On to step 7:
310 goes into 865 2 times with a remainder of 245.
Write down 2 as next digit of the result. 
Result so far: 12482.0
If we take 620 away from 865, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Step 8:
310 goes into 2450 7 times with a remainder of 280.
Put 7 as the next digit of the answer. 
Result so far: 12482.7
Deduct 2170 from 2450 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 9:
The number 310 fits into 2800 9 times, leaving a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 12482.79
Subtracting 2790 from 2800 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
The number 310 fits into 100 0 times, leaving a remainder of 100.
The next digit of our result is 0. 
Result so far: 12482.79
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Advancing to step 11:
1000 divided by 310 is 3 with a remainder of 70.
The number 3 becomes the next digit in our result. 
Result so far: 12482.7903
Subtracting 930 from 1000 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 12:
If we divide 700 by 310, we get 2 and a remainder of 80.
Put 2 as the next digit of the answer. 
Result so far: 12482.79032
Subtracting 620 from 700 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 13:
310 can be fit into 800 2 times, resulting in a remainder of 180.
The next digit of our result is 2. 
Result so far: 12482.790322
The remainder is 180 after subtracting 620 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The quotient of the division is 12482.790322, and the remainder is 1.8e-05.