We're dividing 81615380 by 398 
We're looking to find how many times 398 goes into 81615380.

Let's proceed to step 1:
When dividing 8 by 398, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 398

On to step 2:
When dividing 81 by 398, we get 0 with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Include the next digit (6) from the dividend after 81, then repeat: 816 / 398

Advancing to step 3:
398 goes into 816 2 times with a remainder of 20.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 796 from 816 and we're left with 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 398

Advancing to step 4:
398 goes into 201 0 times with a remainder of 201.
The next digit of our result is 0. 
Result so far: 20.0
If we subtract 0 from 201, we get 201.
Grab the next digit (5) from the dividend, add it to 201, then carry on: 2015 / 398

Advancing to step 5:
398 can be fit into 2015 5 times, resulting in a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 205.0
Subtracting 1990 from 2015 leaves us with 25.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 398

Going ahead to step 6:
398 can be fit into 253 0 times, resulting in a remainder of 253.
Put 0 as the next digit of the answer. 
Result so far: 2050.0
If we take 0 away from 253, we end up with 253.
Fetch the next digit (8) from the dividend, attach it to 253 and continue: 2538 / 398

Advancing to step 7:
The number 398 fits into 2538 6 times, leaving a remainder of 150.
The number 6 becomes the next digit in our result. 
Result so far: 20506.0
If we subtract 2388 from 2538, we get 150.
Fetch the next digit (0) from the dividend, attach it to 150 and continue: 1500 / 398

Step 8:
1500 divided by 398 is 3 with a remainder of 306.
Record the quotient 3 as the next digit in the result. 
Result so far: 205063.0
If we take 1194 away from 1500, we end up with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Going ahead to step 9:
When dividing 3060 by 398, we get 7 with a remainder of 274.
Put 7 as the next digit of the answer. 
Result so far: 205063.7
Deduct 2786 from 3060 and we're left with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Going ahead to step 10:
The number 398 fits into 2740 6 times, leaving a remainder of 352.
Write down 6 as next digit of the result. 
Result so far: 205063.76
The remainder is 352 after subtracting 2388 from 2740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Let's proceed to step 11:
If we divide 3520 by 398, we get 8 and a remainder of 336.
Record the quotient 8 as the next digit in the result. 
Result so far: 205063.768
If we take 3184 away from 3520, we end up with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Going ahead to step 12:
398 goes into 3360 8 times with a remainder of 176.
Use 8 as the next digit of our solution. 
Result so far: 205063.7688
Deduct 3184 from 3360 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

The quotient of the division is 205063.7688, and the remainder is 0.00176.