34521012 ÷ 853 
Let's see how many times 853 fits into 34521012.

Let's proceed to step 1:
The number 853 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 853

Going ahead to step 2:
853 goes into 34 0 times with a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Append the next digit (5) from the dividend to 34 and continue with: 345 / 853

Going ahead to step 3:
345 divided by 853 is 0 with a remainder of 345.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 345 to get 345.
Grab the next digit (2) from the dividend, add it to 345, then carry on: 3452 / 853

Advancing to step 4:
853 goes into 3452 4 times with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 3412 from 3452 leaves us with 40.
Grab the next digit (1) from the dividend, add it to 40, then carry on: 401 / 853

Advancing to step 5:
The number 853 fits into 401 0 times, leaving a remainder of 401.
Put 0 as the next digit of the answer. 
Result so far: 40.0
If we subtract 0 from 401, we get 401.
Grab the next digit (0) from the dividend, add it to 401, then carry on: 4010 / 853

Let's proceed to step 6:
If we divide 4010 by 853, we get 4 and a remainder of 598.
Use 4 as the next digit of our solution. 
Result so far: 404.0
If we take 3412 away from 4010, we end up with 598.
Bring next digit (1) of the dividend behind the 598 and repeat the process: 5981 / 853

Let's proceed to step 7:
If we divide 5981 by 853, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 4047.0
If we take 5971 away from 5981, we end up with 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 853

Step 8:
102 divided by 853 is 0 with a remainder of 102.
Put 0 as the next digit of the answer. 
Result so far: 40470.0
Deduct 0 from 102 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 9:
853 goes into 1020 1 times with a remainder of 167.
The number 1 becomes the next digit in our result. 
Result so far: 40470.1
The remainder is 167 after subtracting 853 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Let's proceed to step 10:
1670 divided by 853 is 1 with a remainder of 817.
Use 1 as the next digit of our solution. 
Result so far: 40470.11
If we take 853 away from 1670, we end up with 817.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8170, and continue the process.

The quotient of the division is 40470.11, and the remainder is 0.817.