Let's divide 838859 by 78
Our goal is to divide 838859 by 78.

Advancing to step 1:
8 divided by 78 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 78

Moving on to step 2:
The number 78 fits into 83 1 times, leaving a remainder of 5.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 78 from 83 leaves us with 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 78

Let's proceed to step 3:
78 can be fit into 58 0 times, resulting in a remainder of 58.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 58, we get 58.
Fetch the next digit (8) from the dividend, attach it to 58 and continue: 588 / 78

Advancing to step 4:
If we divide 588 by 78, we get 7 and a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
If we subtract 546 from 588, we get 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 78

On to step 5:
78 goes into 425 5 times with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 1075.0
Subtract 390 from 425 to get 35.
Append the next digit (9) from the dividend to 35 and continue with: 359 / 78

Moving on to step 6:
78 goes into 359 4 times with a remainder of 47.
The next digit of our result is 4. 
Result so far: 10754.0
Deduct 312 from 359 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 7:
When dividing 470 by 78, we get 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 10754.6
If we subtract 468 from 470, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
78 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 10754.6
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
When dividing 200 by 78, we get 2 with a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 10754.602
Subtract 156 from 200 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.

On to step 10:
When dividing 440 by 78, we get 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 10754.6025
The remainder is 50 after subtracting 390 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
78 goes into 500 6 times with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 10754.60256
If we subtract 468 from 500, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 12:
78 goes into 320 4 times with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 10754.602564
Subtract 312 from 320 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
If we divide 80 by 78, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 10754.6025641
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 14:
20 divided by 78 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 10754.6025641
If we take 0 away from 20, we end up 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.

After the division, we end up with 10754.6025641 and a remainder of 2e-08.