We look at the division of 81138391 by 401 
Let's see how many times 401 fits into 81138391.

Going ahead to step 1:
401 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 401

Step 2:
The number 401 fits into 81 0 times, leaving a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (1) from the dividend, add it to 81, then carry on: 811 / 401

Moving on to step 3:
If we divide 811 by 401, we get 2 and a remainder of 9.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 802 from 811, we get 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 401

Step 4:
401 can be fit into 93 0 times, resulting in a remainder of 93.
Use 0 as the next digit of our solution. 
Result so far: 20.0
The remainder is 93 after subtracting 0 from 93.
Include the next digit (8) from the dividend after 93, then repeat: 938 / 401

On to step 5:
The number 401 fits into 938 2 times, leaving a remainder of 136.
Put 2 as the next digit of the answer. 
Result so far: 202.0
The remainder is 136 after subtracting 802 from 938.
Bring next digit (3) of the dividend behind the 136 and repeat the process: 1363 / 401

Advancing to step 6:
The number 401 fits into 1363 3 times, leaving a remainder of 160.
Record the quotient 3 as the next digit in the result. 
Result so far: 2023.0
The remainder is 160 after subtracting 1203 from 1363.
Fetch the next digit (9) from the dividend, attach it to 160 and continue: 1609 / 401

Moving on to step 7:
401 goes into 1609 4 times with a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 20234.0
Deduct 1604 from 1609 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 401

Going ahead to step 8:
401 goes into 51 0 times with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 202340.0
The remainder is 51 after subtracting 0 from 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 9:
510 divided by 401 is 1 with a remainder of 109.
The number 1 becomes the next digit in our result. 
Result so far: 202340.1
Deduct 401 from 510 and we're left with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Let's proceed to step 10:
When dividing 1090 by 401, we get 2 with a remainder of 288.
Put 2 as the next digit of the answer. 
Result so far: 202340.12
Deduct 802 from 1090 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Going ahead to step 11:
When dividing 2880 by 401, we get 7 with a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 202340.127
Subtract 2807 from 2880 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Let's proceed to step 12:
730 divided by 401 is 1 with a remainder of 329.
Put 1 as the next digit of the answer. 
Result so far: 202340.1271
The remainder is 329 after subtracting 401 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

On to step 13:
When dividing 3290 by 401, we get 8 with a remainder of 82.
The next digit of our result is 8. 
Result so far: 202340.12718
The remainder is 82 after subtracting 3208 from 3290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 14:
If we divide 820 by 401, we get 2 and a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 202340.127182
If we subtract 802 from 820, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 15:
401 goes into 180 0 times with a remainder of 180.
Write down 0 as next digit of the result. 
Result so far: 202340.127182
The remainder is 180 after subtracting 0 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 16:
The number 401 fits into 1800 4 times, leaving a remainder of 196.
Write down 4 as next digit of the result. 
Result so far: 202340.12718204
Subtract 1604 from 1800 to get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

The quotient of the division is 202340.12718204, and the remainder is 1.96e-07.