We're dividing 858210 by 75 
Our goal is to divide 858210 by 75.

Let's proceed to step 1:
The number 75 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 75

On to step 2:
When dividing 85 by 75, we get 1 with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 75 from 85 and we're left with 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 75

On to step 3:
If we divide 108 by 75, we get 1 and a remainder of 33.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 75 from 108 leaves us with 33.
Bring next digit (2) of the dividend behind the 33 and repeat the process: 332 / 75

Let's proceed to step 4:
The number 75 fits into 332 4 times, leaving a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 114.0
Subtracting 300 from 332 leaves us with 32.
Fetch the next digit (1) from the dividend, attach it to 32 and continue: 321 / 75

Let's proceed to step 5:
The number 75 fits into 321 4 times, leaving a remainder of 21.
The number 4 becomes the next digit in our result. 
Result so far: 1144.0
Subtract 300 from 321 to get 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 75

Going ahead to step 6:
If we divide 210 by 75, we get 2 and a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 11442.0
Deduct 150 from 210 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 7:
600 divided by 75 is 8 with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 11442.8
Subtract 600 from 600 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
If we divide 0 by 75, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 11442.8
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 75 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 11442.8
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 11442.8, and the remainder is 0.0.