We're dividing 85571608 by 661 
Our goal is to divide 85571608 by 661.

Let's proceed to step 1:
The number 661 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 661

On to step 2:
When dividing 85 by 661, we get 0 with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 85, we get 85.
Take the next digit (5) from the dividend and append it to 85, then repeat: 855 / 661

Moving on to step 3:
661 can be fit into 855 1 times, resulting in a remainder of 194.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 661 away from 855, we end up with 194.
Fetch the next digit (7) from the dividend, attach it to 194 and continue: 1947 / 661

Advancing to step 4:
When dividing 1947 by 661, we get 2 with a remainder of 625.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 1322 from 1947 leaves us with 625.
Append the next digit (1) from the dividend to 625 and continue with: 6251 / 661

Let's proceed to step 5:
The number 661 fits into 6251 9 times, leaving a remainder of 302.
The next digit of our result is 9. 
Result so far: 129.0
If we take 5949 away from 6251, we end up with 302.
Take the next digit (6) from the dividend and append it to 302, then repeat: 3026 / 661

Let's proceed to step 6:
If we divide 3026 by 661, we get 4 and a remainder of 382.
Write down 4 as next digit of the result. 
Result so far: 1294.0
If we take 2644 away from 3026, we end up with 382.
Take the next digit (0) from the dividend and append it to 382, then repeat: 3820 / 661

Let's proceed to step 7:
The number 661 fits into 3820 5 times, leaving a remainder of 515.
Use 5 as the next digit of our solution. 
Result so far: 12945.0
Subtracting 3305 from 3820 leaves us with 515.
Fetch the next digit (8) from the dividend, attach it to 515 and continue: 5158 / 661

Advancing to step 8:
The number 661 fits into 5158 7 times, leaving a remainder of 531.
Write down 7 as next digit of the result. 
Result so far: 129457.0
If we subtract 4627 from 5158, we get 531.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5310, and continue the process.

Let's proceed to step 9:
5310 divided by 661 is 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 129457.8
If we subtract 5288 from 5310, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 10:
661 goes into 220 0 times with a remainder of 220.
Write down 0 as next digit of the result. 
Result so far: 129457.8
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 11:
2200 divided by 661 is 3 with a remainder of 217.
The number 3 becomes the next digit in our result. 
Result so far: 129457.803
Subtract 1983 from 2200 to get 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Let's proceed to step 12:
2170 divided by 661 is 3 with a remainder of 187.
The next digit of our result is 3. 
Result so far: 129457.8033
If we subtract 1983 from 2170, we get 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

The quotient of the division is 129457.8033, and the remainder is 0.00187.