67519416 ÷ 399 
Our goal is to divide 67519416 by 399.

Step 1:
399 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 399

Let's proceed to step 2:
399 goes into 67 0 times with a remainder of 67.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 67, we end up with 67.
Grab the next digit (5) from the dividend, add it to 67, then carry on: 675 / 399

Advancing to step 3:
The number 399 fits into 675 1 times, leaving a remainder of 276.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 399 from 675 leaves us with 276.
Append the next digit (1) from the dividend to 276 and continue with: 2761 / 399

Going ahead to step 4:
399 goes into 2761 6 times with a remainder of 367.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 2394 away from 2761, we end up with 367.
Grab the next digit (9) from the dividend, add it to 367, then carry on: 3679 / 399

Step 5:
399 goes into 3679 9 times with a remainder of 88.
Put 9 as the next digit of the answer. 
Result so far: 169.0
Deduct 3591 from 3679 and we're left with 88.
Append the next digit (4) from the dividend to 88 and continue with: 884 / 399

On to step 6:
When dividing 884 by 399, we get 2 with a remainder of 86.
Use 2 as the next digit of our solution. 
Result so far: 1692.0
If we subtract 798 from 884, we get 86.
Grab the next digit (1) from the dividend, add it to 86, then carry on: 861 / 399

Moving on to step 7:
399 goes into 861 2 times with a remainder of 63.
Record the quotient 2 as the next digit in the result. 
Result so far: 16922.0
The remainder is 63 after subtracting 798 from 861.
Fetch the next digit (6) from the dividend, attach it to 63 and continue: 636 / 399

Moving on to step 8:
399 goes into 636 1 times with a remainder of 237.
Write down 1 as next digit of the result. 
Result so far: 169221.0
If we take 399 away from 636, we end up with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Let's proceed to step 9:
399 goes into 2370 5 times with a remainder of 375.
The next digit of our result is 5. 
Result so far: 169221.5
Subtracting 1995 from 2370 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Advancing to step 10:
The number 399 fits into 3750 9 times, leaving a remainder of 159.
Put 9 as the next digit of the answer. 
Result so far: 169221.59
The remainder is 159 after subtracting 3591 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Let's proceed to step 11:
When dividing 1590 by 399, we get 3 with a remainder of 393.
Put 3 as the next digit of the answer. 
Result so far: 169221.593
Subtracting 1197 from 1590 leaves us with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

On to step 12:
399 goes into 3930 9 times with a remainder of 339.
The next digit of our result is 9. 
Result so far: 169221.5939
The remainder is 339 after subtracting 3591 from 3930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Going ahead to step 13:
The number 399 fits into 3390 8 times, leaving a remainder of 198.
Record the quotient 8 as the next digit in the result. 
Result so far: 169221.59398
If we take 3192 away from 3390, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 14:
If we divide 1980 by 399, we get 4 and a remainder of 384.
The number 4 becomes the next digit in our result. 
Result so far: 169221.593984
Subtract 1596 from 1980 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

On to step 15:
If we divide 3840 by 399, we get 9 and a remainder of 249.
Put 9 as the next digit of the answer. 
Result so far: 169221.5939849
Deduct 3591 from 3840 and we're left with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Going ahead to step 16:
399 goes into 2490 6 times with a remainder of 96.
Use 6 as the next digit of our solution. 
Result so far: 169221.59398496
The remainder is 96 after subtracting 2394 from 2490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Our division results in 169221.59398496 with a remaining 9.6e-08.