We divide 77831270 by 221
We want to figure out the number of times 77831270 can be divided by 221.

Going ahead to step 1:
The number 221 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 221

Moving on to step 2:
The number 221 fits into 77 0 times, leaving a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Grab the next digit (8) from the dividend, add it to 77, then carry on: 778 / 221

Moving on to step 3:
The number 221 fits into 778 3 times, leaving a remainder of 115.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 663 from 778, we get 115.
Append the next digit (3) from the dividend to 115 and continue with: 1153 / 221

On to step 4:
1153 divided by 221 is 5 with a remainder of 48.
The next digit of our result is 5. 
Result so far: 35.0
Deduct 1105 from 1153 and we're left with 48.
Append the next digit (1) from the dividend to 48 and continue with: 481 / 221

Step 5:
When dividing 481 by 221, we get 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 352.0
If we subtract 442 from 481, we get 39.
Append the next digit (2) from the dividend to 39 and continue with: 392 / 221

Advancing to step 6:
221 can be fit into 392 1 times, resulting in a remainder of 171.
Write down 1 as next digit of the result. 
Result so far: 3521.0
The remainder is 171 after subtracting 221 from 392.
Grab the next digit (7) from the dividend, add it to 171, then carry on: 1717 / 221

Advancing to step 7:
If we divide 1717 by 221, we get 7 and a remainder of 170.
Record the quotient 7 as the next digit in the result. 
Result so far: 35217.0
Deduct 1547 from 1717 and we're left with 170.
Include the next digit (0) from the dividend after 170, then repeat: 1700 / 221

Advancing to step 8:
When dividing 1700 by 221, we get 7 with a remainder of 153.
Use 7 as the next digit of our solution. 
Result so far: 352177.0
Deduct 1547 from 1700 and we're left with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Step 9:
The number 221 fits into 1530 6 times, leaving a remainder of 204.
Use 6 as the next digit of our solution. 
Result so far: 352177.6
If we subtract 1326 from 1530, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Advancing to step 10:
221 can be fit into 2040 9 times, resulting in a remainder of 51.
The next digit of our result is 9. 
Result so far: 352177.69
The remainder is 51 after subtracting 1989 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 11:
510 divided by 221 is 2 with a remainder of 68.
The next digit of our result is 2. 
Result so far: 352177.692
The remainder is 68 after subtracting 442 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 12:
When dividing 680 by 221, we get 3 with a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 352177.6923
If we take 663 away from 680, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 13:
170 divided by 221 is 0 with a remainder of 170.
Put 0 as the next digit of the answer. 
Result so far: 352177.6923
If we subtract 0 from 170, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 14:
221 goes into 1700 7 times with a remainder of 153.
The next digit of our result is 7. 
Result so far: 352177.692307
Deduct 1547 from 1700 and we're left with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Step 15:
When dividing 1530 by 221, we get 6 with a remainder of 204.
The number 6 becomes the next digit in our result. 
Result so far: 352177.6923076
Subtracting 1326 from 1530 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 16:
221 goes into 2040 9 times with a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 352177.69230769
If we take 1989 away from 2040, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Our division results in 352177.69230769 with a remaining 5.1e-08.