We look at the division of 86641246 by 392 
Our goal is to divide 86641246 by 392.

Step 1:
The number 392 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 392

Advancing to step 2:
When dividing 86 by 392, we get 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Fetch the next digit (6) from the dividend, attach it to 86 and continue: 866 / 392

On to step 3:
392 can be fit into 866 2 times, resulting in a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 784 away from 866, we end up with 82.
Include the next digit (4) from the dividend after 82, then repeat: 824 / 392

Let's proceed to step 4:
392 goes into 824 2 times with a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 22.0
Deduct 784 from 824 and we're left with 40.
Take the next digit (1) from the dividend and append it to 40, then repeat: 401 / 392

Let's proceed to step 5:
If we divide 401 by 392, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 221.0
Deduct 392 from 401 and we're left with 9.
Include the next digit (2) from the dividend after 9, then repeat: 92 / 392

Advancing to step 6:
The number 392 fits into 92 0 times, leaving a remainder of 92.
Record the quotient 0 as the next digit in the result. 
Result so far: 2210.0
Subtracting 0 from 92 leaves us with 92.
Append the next digit (4) from the dividend to 92 and continue with: 924 / 392

Going ahead to step 7:
392 can be fit into 924 2 times, resulting in a remainder of 140.
Use 2 as the next digit of our solution. 
Result so far: 22102.0
If we subtract 784 from 924, we get 140.
Append the next digit (6) from the dividend to 140 and continue with: 1406 / 392

Moving on to step 8:
1406 divided by 392 is 3 with a remainder of 230.
Record the quotient 3 as the next digit in the result. 
Result so far: 221023.0
The remainder is 230 after subtracting 1176 from 1406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 9:
392 can be fit into 2300 5 times, resulting in a remainder of 340.
Record the quotient 5 as the next digit in the result. 
Result so far: 221023.5
Deduct 1960 from 2300 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 10:
When dividing 3400 by 392, we get 8 with a remainder of 264.
Record the quotient 8 as the next digit in the result. 
Result so far: 221023.58
Deduct 3136 from 3400 and we're left with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Step 11:
392 can be fit into 2640 6 times, resulting in a remainder of 288.
Record the quotient 6 as the next digit in the result. 
Result so far: 221023.586
If we take 2352 away from 2640, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 12:
When dividing 2880 by 392, we get 7 with a remainder of 136.
The next digit of our result is 7. 
Result so far: 221023.5867
If we take 2744 away from 2880, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 13:
If we divide 1360 by 392, we get 3 and a remainder of 184.
The number 3 becomes the next digit in our result. 
Result so far: 221023.58673
Deduct 1176 from 1360 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 14:
1840 divided by 392 is 4 with a remainder of 272.
The next digit of our result is 4. 
Result so far: 221023.586734
Subtract 1568 from 1840 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 15:
If we divide 2720 by 392, we get 6 and a remainder of 368.
Use 6 as the next digit of our solution. 
Result so far: 221023.5867346
If we take 2352 away from 2720, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Let's proceed to step 16:
The number 392 fits into 3680 9 times, leaving a remainder of 152.
The next digit of our result is 9. 
Result so far: 221023.58673469
If we subtract 3528 from 3680, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

The final outcome is 221023.58673469, with a leftover of 1.52e-07.