Let's divide 72184406 by 399
Our goal is to divide 72184406 by 399.

Advancing to step 1:
7 divided by 399 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 399

Moving on to step 2:
399 goes into 72 0 times with a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Grab the next digit (1) from the dividend, add it to 72, then carry on: 721 / 399

Going ahead to step 3:
721 divided by 399 is 1 with a remainder of 322.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 399 from 721, we get 322.
Take the next digit (8) from the dividend and append it to 322, then repeat: 3228 / 399

On to step 4:
When dividing 3228 by 399, we get 8 with a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 36 after subtracting 3192 from 3228.
Grab the next digit (4) from the dividend, add it to 36, then carry on: 364 / 399

Let's proceed to step 5:
When dividing 364 by 399, we get 0 with a remainder of 364.
Write down 0 as next digit of the result. 
Result so far: 180.0
If we subtract 0 from 364, we get 364.
Include the next digit (4) from the dividend after 364, then repeat: 3644 / 399

On to step 6:
399 can be fit into 3644 9 times, resulting in a remainder of 53.
Write down 9 as next digit of the result. 
Result so far: 1809.0
Subtract 3591 from 3644 to get 53.
Grab the next digit (0) from the dividend, add it to 53, then carry on: 530 / 399

Let's proceed to step 7:
399 goes into 530 1 times with a remainder of 131.
The next digit of our result is 1. 
Result so far: 18091.0
Subtracting 399 from 530 leaves us with 131.
Grab the next digit (6) from the dividend, add it to 131, then carry on: 1316 / 399

On to step 8:
The number 399 fits into 1316 3 times, leaving a remainder of 119.
Write down 3 as next digit of the result. 
Result so far: 180913.0
Subtract 1197 from 1316 to get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Moving on to step 9:
When dividing 1190 by 399, we get 2 with a remainder of 392.
Write down 2 as next digit of the result. 
Result so far: 180913.2
If we take 798 away from 1190, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Going ahead to step 10:
If we divide 3920 by 399, we get 9 and a remainder of 329.
Record the quotient 9 as the next digit in the result. 
Result so far: 180913.29
Subtracting 3591 from 3920 leaves us with 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

Step 11:
3290 divided by 399 is 8 with a remainder of 98.
Record the quotient 8 as the next digit in the result. 
Result so far: 180913.298
The remainder is 98 after subtracting 3192 from 3290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Moving on to step 12:
When dividing 980 by 399, we get 2 with a remainder of 182.
Use 2 as the next digit of our solution. 
Result so far: 180913.2982
Deduct 798 from 980 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 13:
399 can be fit into 1820 4 times, resulting in a remainder of 224.
Record the quotient 4 as the next digit in the result. 
Result so far: 180913.29824
The remainder is 224 after subtracting 1596 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 14:
399 goes into 2240 5 times with a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 180913.298245
If we take 1995 away from 2240, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Step 15:
399 can be fit into 2450 6 times, resulting in a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 180913.2982456
If we take 2394 away from 2450, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 16:
The number 399 fits into 560 1 times, leaving a remainder of 161.
Use 1 as the next digit of our solution. 
Result so far: 180913.29824561
Subtract 399 from 560 to get 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

The final result is 180913.29824561 with a remainder of 1.61e-07.