We look at the division of 83955438 by 878 
Let's see how many times 878 fits into 83955438.

On to step 1:
If we divide 8 by 878, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
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 / 878

Step 2:
83 divided by 878 is 0 with a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Grab the next digit (9) from the dividend, add it to 83, then carry on: 839 / 878

Moving on to step 3:
If we divide 839 by 878, we get 0 and a remainder of 839.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 839 and we're left with 839.
Fetch the next digit (5) from the dividend, attach it to 839 and continue: 8395 / 878

Going ahead to step 4:
When dividing 8395 by 878, we get 9 with a remainder of 493.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 7902 from 8395 to get 493.
Take the next digit (5) from the dividend and append it to 493, then repeat: 4935 / 878

Let's proceed to step 5:
The number 878 fits into 4935 5 times, leaving a remainder of 545.
Write down 5 as next digit of the result. 
Result so far: 95.0
If we subtract 4390 from 4935, we get 545.
Fetch the next digit (4) from the dividend, attach it to 545 and continue: 5454 / 878

Let's proceed to step 6:
When dividing 5454 by 878, we get 6 with a remainder of 186.
Record the quotient 6 as the next digit in the result. 
Result so far: 956.0
Deduct 5268 from 5454 and we're left with 186.
Append the next digit (3) from the dividend to 186 and continue with: 1863 / 878

Moving on to step 7:
878 goes into 1863 2 times with a remainder of 107.
The next digit of our result is 2. 
Result so far: 9562.0
If we take 1756 away from 1863, we end up with 107.
Fetch the next digit (8) from the dividend, attach it to 107 and continue: 1078 / 878

On to step 8:
878 can be fit into 1078 1 times, resulting in a remainder of 200.
Use 1 as the next digit of our solution. 
Result so far: 95621.0
If we take 878 away from 1078, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 9:
878 can be fit into 2000 2 times, resulting in a remainder of 244.
The next digit of our result is 2. 
Result so far: 95621.2
If we take 1756 away from 2000, we end up with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Let's proceed to step 10:
When dividing 2440 by 878, we get 2 with a remainder of 684.
Use 2 as the next digit of our solution. 
Result so far: 95621.22
If we subtract 1756 from 2440, we get 684.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6840, and continue the process.

The quotient of the division is 95621.22, and the remainder is 0.684.