Let's divide 76429286 by 399
We want to divide 76429286 by 399.

On to step 1:
7 divided by 399 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 399

Advancing to step 2:
When dividing 76 by 399, we get 0 with a remainder of 76.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 76 after subtracting 0 from 76.
Append the next digit (4) from the dividend to 76 and continue with: 764 / 399

Advancing to step 3:
If we divide 764 by 399, we get 1 and a remainder of 365.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 399 away from 764, we end up with 365.
Append the next digit (2) from the dividend to 365 and continue with: 3652 / 399

On to step 4:
399 goes into 3652 9 times with a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we subtract 3591 from 3652, we get 61.
Bring next digit (9) of the dividend behind the 61 and repeat the process: 619 / 399

Advancing to step 5:
When dividing 619 by 399, we get 1 with a remainder of 220.
The next digit of our result is 1. 
Result so far: 191.0
Subtract 399 from 619 to get 220.
Bring next digit (2) of the dividend behind the 220 and repeat the process: 2202 / 399

Let's proceed to step 6:
The number 399 fits into 2202 5 times, leaving a remainder of 207.
Use 5 as the next digit of our solution. 
Result so far: 1915.0
If we subtract 1995 from 2202, we get 207.
Include the next digit (8) from the dividend after 207, then repeat: 2078 / 399

Step 7:
399 can be fit into 2078 5 times, resulting in a remainder of 83.
Record the quotient 5 as the next digit in the result. 
Result so far: 19155.0
Subtracting 1995 from 2078 leaves us with 83.
Append the next digit (6) from the dividend to 83 and continue with: 836 / 399

Moving on to step 8:
The number 399 fits into 836 2 times, leaving a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 191552.0
Subtracting 798 from 836 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 9:
The number 399 fits into 380 0 times, leaving a remainder of 380.
Put 0 as the next digit of the answer. 
Result so far: 191552.0
Subtracting 0 from 380 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 10:
399 can be fit into 3800 9 times, resulting in a remainder of 209.
Record the quotient 9 as the next digit in the result. 
Result so far: 191552.09
The remainder is 209 after subtracting 3591 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Let's proceed to step 11:
399 can be fit into 2090 5 times, resulting in a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 191552.095
Deduct 1995 from 2090 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 12:
399 can be fit into 950 2 times, resulting in a remainder of 152.
Record the quotient 2 as the next digit in the result. 
Result so far: 191552.0952
Deduct 798 from 950 and we're left with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Step 13:
The number 399 fits into 1520 3 times, leaving a remainder of 323.
Record the quotient 3 as the next digit in the result. 
Result so far: 191552.09523
The remainder is 323 after subtracting 1197 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Step 14:
When dividing 3230 by 399, we get 8 with a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 191552.095238
Subtracting 3192 from 3230 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 15:
If we divide 380 by 399, we get 0 and a remainder of 380.
Record the quotient 0 as the next digit in the result. 
Result so far: 191552.095238
Subtract 0 from 380 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Step 16:
When dividing 3800 by 399, we get 9 with a remainder of 209.
Put 9 as the next digit of the answer. 
Result so far: 191552.09523809
The remainder is 209 after subtracting 3591 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

The final outcome is 191552.09523809, with a leftover of 2.09e-07.