We're dividing 34397436 by 878 
We want to divide 34397436 by 878.

Moving on to step 1:
The number 878 fits into 3 0 times, leaving 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.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 878

Let's proceed to step 2:
When dividing 34 by 878, we get 0 with a remainder of 34.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 34 and we're left with 34.
Grab the next digit (3) from the dividend, add it to 34, then carry on: 343 / 878

Moving on to step 3:
878 can be fit into 343 0 times, resulting in a remainder of 343.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 343 to get 343.
Append the next digit (9) from the dividend to 343 and continue with: 3439 / 878

On to step 4:
If we divide 3439 by 878, we get 3 and a remainder of 805.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 2634 from 3439 to get 805.
Include the next digit (7) from the dividend after 805, then repeat: 8057 / 878

Advancing to step 5:
878 can be fit into 8057 9 times, resulting in a remainder of 155.
Write down 9 as next digit of the result. 
Result so far: 39.0
If we subtract 7902 from 8057, we get 155.
Append the next digit (4) from the dividend to 155 and continue with: 1554 / 878

Let's proceed to step 6:
If we divide 1554 by 878, we get 1 and a remainder of 676.
Use 1 as the next digit of our solution. 
Result so far: 391.0
If we subtract 878 from 1554, we get 676.
Take the next digit (3) from the dividend and append it to 676, then repeat: 6763 / 878

Moving on to step 7:
The number 878 fits into 6763 7 times, leaving a remainder of 617.
Record the quotient 7 as the next digit in the result. 
Result so far: 3917.0
Subtracting 6146 from 6763 leaves us with 617.
Take the next digit (6) from the dividend and append it to 617, then repeat: 6176 / 878

Step 8:
6176 divided by 878 is 7 with a remainder of 30.
Record the quotient 7 as the next digit in the result. 
Result so far: 39177.0
Deduct 6146 from 6176 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
The number 878 fits into 300 0 times, leaving a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 39177.0
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 10:
878 can be fit into 3000 3 times, resulting in a remainder of 366.
Put 3 as the next digit of the answer. 
Result so far: 39177.03
Deduct 2634 from 3000 and we're left with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Step 11:
When dividing 3660 by 878, we get 4 with a remainder of 148.
Use 4 as the next digit of our solution. 
Result so far: 39177.034
Deduct 3512 from 3660 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 12:
1480 divided by 878 is 1 with a remainder of 602.
Record the quotient 1 as the next digit in the result. 
Result so far: 39177.0341
If we subtract 878 from 1480, we get 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Let's proceed to step 13:
The number 878 fits into 6020 6 times, leaving a remainder of 752.
Use 6 as the next digit of our solution. 
Result so far: 39177.03416
If we subtract 5268 from 6020, we get 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

Advancing to step 14:
7520 divided by 878 is 8 with a remainder of 496.
Record the quotient 8 as the next digit in the result. 
Result so far: 39177.034168
If we take 7024 away from 7520, we end up with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Step 15:
4960 divided by 878 is 5 with a remainder of 570.
Put 5 as the next digit of the answer. 
Result so far: 39177.0341685
The remainder is 570 after subtracting 4390 from 4960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

On to step 16:
878 can be fit into 5700 6 times, resulting in a remainder of 432.
Put 6 as the next digit of the answer. 
Result so far: 39177.03416856
Deduct 5268 from 5700 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

After the division, we end up with 39177.03416856 and a remainder of 4.32e-07.