We divide 86431421 by 221
Let's see how many times 221 fits into 86431421.

Let's proceed to step 1:
If we divide 8 by 221, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 221

Moving on to step 2:
86 divided by 221 is 0 with a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 221

Step 3:
864 divided by 221 is 3 with a remainder of 201.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 663 from 864 and we're left with 201.
Take the next digit (3) from the dividend and append it to 201, then repeat: 2013 / 221

Advancing to step 4:
221 goes into 2013 9 times with a remainder of 24.
The next digit of our result is 9. 
Result so far: 39.0
Subtract 1989 from 2013 to get 24.
Bring next digit (1) of the dividend behind the 24 and repeat the process: 241 / 221

Step 5:
If we divide 241 by 221, we get 1 and a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 391.0
Subtracting 221 from 241 leaves us with 20.
Grab the next digit (4) from the dividend, add it to 20, then carry on: 204 / 221

Going ahead to step 6:
221 can be fit into 204 0 times, resulting in a remainder of 204.
Record the quotient 0 as the next digit in the result. 
Result so far: 3910.0
Subtracting 0 from 204 leaves us with 204.
Fetch the next digit (2) from the dividend, attach it to 204 and continue: 2042 / 221

Advancing to step 7:
The number 221 fits into 2042 9 times, leaving a remainder of 53.
Use 9 as the next digit of our solution. 
Result so far: 39109.0
If we take 1989 away from 2042, we end up with 53.
Include the next digit (1) from the dividend after 53, then repeat: 531 / 221

Advancing to step 8:
221 goes into 531 2 times with a remainder of 89.
Use 2 as the next digit of our solution. 
Result so far: 391092.0
If we subtract 442 from 531, we get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Going ahead to step 9:
221 goes into 890 4 times with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 391092.4
Subtract 884 from 890 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
When dividing 60 by 221, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 391092.4
The remainder is 60 after subtracting 0 from 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 11:
The number 221 fits into 600 2 times, leaving a remainder of 158.
The number 2 becomes the next digit in our result. 
Result so far: 391092.402
If we subtract 442 from 600, we get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

On to step 12:
When dividing 1580 by 221, we get 7 with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 391092.4027
Subtract 1547 from 1580 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 13:
If we divide 330 by 221, we get 1 and a remainder of 109.
Put 1 as the next digit of the answer. 
Result so far: 391092.40271
Subtract 221 from 330 to get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Advancing to step 14:
1090 divided by 221 is 4 with a remainder of 206.
Put 4 as the next digit of the answer. 
Result so far: 391092.402714
If we take 884 away from 1090, we end up with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Moving on to step 15:
221 goes into 2060 9 times with a remainder of 71.
Use 9 as the next digit of our solution. 
Result so far: 391092.4027149
The remainder is 71 after subtracting 1989 from 2060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 16:
221 goes into 710 3 times with a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 391092.40271493
The remainder is 47 after subtracting 663 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

In conclusion, the division gives 391092.40271493 with a balance of 4.7e-08.