We're dividing 66391399 by 392 
We're looking to find how many times 392 goes into 66391399.

Moving on to step 1:
392 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 392

Step 2:
If we divide 66 by 392, we get 0 and a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Fetch the next digit (3) from the dividend, attach it to 66 and continue: 663 / 392

Moving on to step 3:
392 can be fit into 663 1 times, resulting in a remainder of 271.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 392 from 663 and we're left with 271.
Bring next digit (9) of the dividend behind the 271 and repeat the process: 2719 / 392

Advancing to step 4:
392 can be fit into 2719 6 times, resulting in a remainder of 367.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 2352 from 2719 leaves us with 367.
Take the next digit (1) from the dividend and append it to 367, then repeat: 3671 / 392

Moving on to step 5:
The number 392 fits into 3671 9 times, leaving a remainder of 143.
Record the quotient 9 as the next digit in the result. 
Result so far: 169.0
If we subtract 3528 from 3671, we get 143.
Grab the next digit (3) from the dividend, add it to 143, then carry on: 1433 / 392

Step 6:
392 can be fit into 1433 3 times, resulting in a remainder of 257.
Use 3 as the next digit of our solution. 
Result so far: 1693.0
If we take 1176 away from 1433, we end up with 257.
Append the next digit (9) from the dividend to 257 and continue with: 2579 / 392

Advancing to step 7:
If we divide 2579 by 392, we get 6 and a remainder of 227.
Use 6 as the next digit of our solution. 
Result so far: 16936.0
If we subtract 2352 from 2579, we get 227.
Take the next digit (9) from the dividend and append it to 227, then repeat: 2279 / 392

Let's proceed to step 8:
392 goes into 2279 5 times with a remainder of 319.
Write down 5 as next digit of the result. 
Result so far: 169365.0
Subtract 1960 from 2279 to get 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

On to step 9:
392 goes into 3190 8 times with a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 169365.8
Subtract 3136 from 3190 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 10:
The number 392 fits into 540 1 times, leaving a remainder of 148.
The next digit of our result is 1. 
Result so far: 169365.81
Deduct 392 from 540 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 11:
392 goes into 1480 3 times with a remainder of 304.
Put 3 as the next digit of the answer. 
Result so far: 169365.813
Deduct 1176 from 1480 and we're left with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 12:
When dividing 3040 by 392, we get 7 with a remainder of 296.
Use 7 as the next digit of our solution. 
Result so far: 169365.8137
If we subtract 2744 from 3040, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Moving on to step 13:
The number 392 fits into 2960 7 times, leaving a remainder of 216.
Use 7 as the next digit of our solution. 
Result so far: 169365.81377
If we take 2744 away from 2960, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

After the division, we end up with 169365.81377 and a remainder of 0.000216.