857789 divided by 84 
Let's see how many times 84 fits into 857789.

On to step 1:
8 divided by 84 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 84

Advancing to step 2:
85 divided by 84 is 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 84 from 85 leaves us with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 84

Moving on to step 3:
If we divide 17 by 84, we get 0 and a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 17 after subtracting 0 from 17.
Include the next digit (7) from the dividend after 17, then repeat: 177 / 84

Advancing to step 4:
When dividing 177 by 84, we get 2 with a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 102.0
Deduct 168 from 177 and we're left with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 84

Advancing to step 5:
84 goes into 98 1 times with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1021.0
Subtracting 84 from 98 leaves us with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 84

Moving on to step 6:
The number 84 fits into 149 1 times, leaving a remainder of 65.
Put 1 as the next digit of the answer. 
Result so far: 10211.0
If we take 84 away from 149, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 7:
650 divided by 84 is 7 with a remainder of 62.
Write down 7 as next digit of the result. 
Result so far: 10211.7
The remainder is 62 after subtracting 588 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 8:
The number 84 fits into 620 7 times, leaving a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 10211.77
If we subtract 588 from 620, 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.

The quotient of the division is 10211.77, and the remainder is 0.032.