81221525 divided by 966 
Our goal is to divide 81221525 by 966.

Let's proceed to step 1:
966 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 966

Step 2:
966 goes into 81 0 times with a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Take the next digit (2) from the dividend and append it to 81, then repeat: 812 / 966

Advancing to step 3:
If we divide 812 by 966, we get 0 and a remainder of 812.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 812 after subtracting 0 from 812.
Fetch the next digit (2) from the dividend, attach it to 812 and continue: 8122 / 966

Going ahead to step 4:
When dividing 8122 by 966, we get 8 with a remainder of 394.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 7728 from 8122 leaves us with 394.
Grab the next digit (1) from the dividend, add it to 394, then carry on: 3941 / 966

Advancing to step 5:
3941 divided by 966 is 4 with a remainder of 77.
The next digit of our result is 4. 
Result so far: 84.0
The remainder is 77 after subtracting 3864 from 3941.
Include the next digit (5) from the dividend after 77, then repeat: 775 / 966

Advancing to step 6:
When dividing 775 by 966, we get 0 with a remainder of 775.
The number 0 becomes the next digit in our result. 
Result so far: 840.0
The remainder is 775 after subtracting 0 from 775.
Take the next digit (2) from the dividend and append it to 775, then repeat: 7752 / 966

On to step 7:
966 goes into 7752 8 times with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 8408.0
If we subtract 7728 from 7752, we get 24.
Bring next digit (5) of the dividend behind the 24 and repeat the process: 245 / 966

Moving on to step 8:
If we divide 245 by 966, we get 0 and a remainder of 245.
The number 0 becomes the next digit in our result. 
Result so far: 84080.0
If we take 0 away from 245, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Moving on to step 9:
966 goes into 2450 2 times with a remainder of 518.
Write down 2 as next digit of the result. 
Result so far: 84080.2
Deduct 1932 from 2450 and we're left with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Moving on to step 10:
The number 966 fits into 5180 5 times, leaving a remainder of 350.
Record the quotient 5 as the next digit in the result. 
Result so far: 84080.25
If we subtract 4830 from 5180, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 11:
966 goes into 3500 3 times with a remainder of 602.
Use 3 as the next digit of our solution. 
Result so far: 84080.253
Subtract 2898 from 3500 to get 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

On to step 12:
966 goes into 6020 6 times with a remainder of 224.
Record the quotient 6 as the next digit in the result. 
Result so far: 84080.2536
Deduct 5796 from 6020 and we're left with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Step 13:
When dividing 2240 by 966, we get 2 with a remainder of 308.
Record the quotient 2 as the next digit in the result. 
Result so far: 84080.25362
The remainder is 308 after subtracting 1932 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 14:
When dividing 3080 by 966, we get 3 with a remainder of 182.
Write down 3 as next digit of the result. 
Result so far: 84080.253623
If we take 2898 away from 3080, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 15:
The number 966 fits into 1820 1 times, leaving a remainder of 854.
Use 1 as the next digit of our solution. 
Result so far: 84080.2536231
Subtracting 966 from 1820 leaves us with 854.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8540, and continue the process.

Let's proceed to step 16:
966 goes into 8540 8 times with a remainder of 812.
The next digit of our result is 8. 
Result so far: 84080.25362318
Subtract 7728 from 8540 to get 812.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8120, and continue the process.

After the division, we end up with 84080.25362318 and a remainder of 8.12e-07.