38478941 ÷ 398 
We want to figure out the number of times 38478941 can be divided by 398.

Step 1:
3 divided by 398 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 398

Let's proceed to step 2:
When dividing 38 by 398, we get 0 with a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Include the next digit (4) from the dividend after 38, then repeat: 384 / 398

Advancing to step 3:
384 divided by 398 is 0 with a remainder of 384.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 384, we get 384.
Take the next digit (7) from the dividend and append it to 384, then repeat: 3847 / 398

On to step 4:
398 can be fit into 3847 9 times, resulting in a remainder of 265.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 265 after subtracting 3582 from 3847.
Include the next digit (8) from the dividend after 265, then repeat: 2658 / 398

Moving on to step 5:
398 goes into 2658 6 times with a remainder of 270.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
The remainder is 270 after subtracting 2388 from 2658.
Fetch the next digit (9) from the dividend, attach it to 270 and continue: 2709 / 398

On to step 6:
The number 398 fits into 2709 6 times, leaving a remainder of 321.
Record the quotient 6 as the next digit in the result. 
Result so far: 966.0
Deduct 2388 from 2709 and we're left with 321.
Grab the next digit (4) from the dividend, add it to 321, then carry on: 3214 / 398

Step 7:
398 can be fit into 3214 8 times, resulting in a remainder of 30.
Use 8 as the next digit of our solution. 
Result so far: 9668.0
The remainder is 30 after subtracting 3184 from 3214.
Include the next digit (1) from the dividend after 30, then repeat: 301 / 398

Advancing to step 8:
If we divide 301 by 398, we get 0 and a remainder of 301.
Use 0 as the next digit of our solution. 
Result so far: 96680.0
Subtracting 0 from 301 leaves us with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Step 9:
When dividing 3010 by 398, we get 7 with a remainder of 224.
The number 7 becomes the next digit in our result. 
Result so far: 96680.7
The remainder is 224 after subtracting 2786 from 3010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Going ahead to step 10:
2240 divided by 398 is 5 with a remainder of 250.
Write down 5 as next digit of the result. 
Result so far: 96680.75
Subtract 1990 from 2240 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 11:
398 can be fit into 2500 6 times, resulting in a remainder of 112.
Put 6 as the next digit of the answer. 
Result so far: 96680.756
The remainder is 112 after subtracting 2388 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 12:
If we divide 1120 by 398, we get 2 and a remainder of 324.
Put 2 as the next digit of the answer. 
Result so far: 96680.7562
Subtract 796 from 1120 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

On to step 13:
The number 398 fits into 3240 8 times, leaving a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 96680.75628
Subtract 3184 from 3240 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
The number 398 fits into 560 1 times, leaving a remainder of 162.
Put 1 as the next digit of the answer. 
Result so far: 96680.756281
If we subtract 398 from 560, we get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Moving on to step 15:
If we divide 1620 by 398, we get 4 and a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 96680.7562814
Subtract 1592 from 1620 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 16:
The number 398 fits into 280 0 times, leaving a remainder of 280.
Record the quotient 0 as the next digit in the result. 
Result so far: 96680.7562814
Subtracting 0 from 280 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Our division results in 96680.7562814 with a remaining 2.8e-07.