84778869 divided by 839 
We want to figure out the number of times 84778869 can be divided by 839.

Advancing to step 1:
839 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 839

Moving on to step 2:
If we divide 84 by 839, we get 0 and a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Append the next digit (7) from the dividend to 84 and continue with: 847 / 839

Moving on to step 3:
The number 839 fits into 847 1 times, leaving a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 8 after subtracting 839 from 847.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 839

Step 4:
87 divided by 839 is 0 with a remainder of 87.
The next digit of our result is 0. 
Result so far: 10.0
If we take 0 away from 87, we end up with 87.
Grab the next digit (8) from the dividend, add it to 87, then carry on: 878 / 839

Let's proceed to step 5:
839 can be fit into 878 1 times, resulting in a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 101.0
If we subtract 839 from 878, we get 39.
Bring next digit (8) of the dividend behind the 39 and repeat the process: 398 / 839

Moving on to step 6:
If we divide 398 by 839, we get 0 and a remainder of 398.
Use 0 as the next digit of our solution. 
Result so far: 1010.0
Deduct 0 from 398 and we're left with 398.
Take the next digit (6) from the dividend and append it to 398, then repeat: 3986 / 839

Let's proceed to step 7:
The number 839 fits into 3986 4 times, leaving a remainder of 630.
The next digit of our result is 4. 
Result so far: 10104.0
If we take 3356 away from 3986, we end up with 630.
Bring next digit (9) of the dividend behind the 630 and repeat the process: 6309 / 839

Step 8:
When dividing 6309 by 839, we get 7 with a remainder of 436.
The next digit of our result is 7. 
Result so far: 101047.0
If we subtract 5873 from 6309, we get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Step 9:
The number 839 fits into 4360 5 times, leaving a remainder of 165.
Record the quotient 5 as the next digit in the result. 
Result so far: 101047.5
The remainder is 165 after subtracting 4195 from 4360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Let's proceed to step 10:
1650 divided by 839 is 1 with a remainder of 811.
Use 1 as the next digit of our solution. 
Result so far: 101047.51
Subtracting 839 from 1650 leaves us with 811.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8110, and continue the process.

On to step 11:
When dividing 8110 by 839, we get 9 with a remainder of 559.
Write down 9 as next digit of the result. 
Result so far: 101047.519
Deduct 7551 from 8110 and we're left with 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

On to step 12:
839 goes into 5590 6 times with a remainder of 556.
Put 6 as the next digit of the answer. 
Result so far: 101047.5196
If we take 5034 away from 5590, we end up with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Moving on to step 13:
When dividing 5560 by 839, we get 6 with a remainder of 526.
Write down 6 as next digit of the result. 
Result so far: 101047.51966
If we take 5034 away from 5560, we end up with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

In conclusion, the division gives 101047.51966 with a balance of 0.000526.