We look at the division of 41866401 by 161 
We want to divide 41866401 by 161.

On to step 1:
The number 161 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 161

On to step 2:
If we divide 41 by 161, we get 0 and a remainder of 41.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 41 after subtracting 0 from 41.
Include the next digit (8) from the dividend after 41, then repeat: 418 / 161

Moving on to step 3:
When dividing 418 by 161, we get 2 with a remainder of 96.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 96 after subtracting 322 from 418.
Bring next digit (6) of the dividend behind the 96 and repeat the process: 966 / 161

Step 4:
161 can be fit into 966 6 times, resulting in a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 26.0
Deduct 966 from 966 and we're left with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 161

Step 5:
161 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 260.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 161

On to step 6:
161 goes into 64 0 times with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 2600.0
Subtract 0 from 64 to get 64.
Grab the next digit (0) from the dividend, add it to 64, then carry on: 640 / 161

Let's proceed to step 7:
The number 161 fits into 640 3 times, leaving a remainder of 157.
Use 3 as the next digit of our solution. 
Result so far: 26003.0
If we take 483 away from 640, we end up with 157.
Grab the next digit (1) from the dividend, add it to 157, then carry on: 1571 / 161

On to step 8:
When dividing 1571 by 161, we get 9 with a remainder of 122.
The number 9 becomes the next digit in our result. 
Result so far: 260039.0
Subtract 1449 from 1571 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Moving on to step 9:
If we divide 1220 by 161, we get 7 and a remainder of 93.
Record the quotient 7 as the next digit in the result. 
Result so far: 260039.7
Subtract 1127 from 1220 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

On to step 10:
161 can be fit into 930 5 times, resulting in a remainder of 125.
The next digit of our result is 5. 
Result so far: 260039.75
If we take 805 away from 930, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 11:
161 can be fit into 1250 7 times, resulting in a remainder of 123.
Put 7 as the next digit of the answer. 
Result so far: 260039.757
Deduct 1127 from 1250 and we're left with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Step 12:
The number 161 fits into 1230 7 times, leaving a remainder of 103.
The number 7 becomes the next digit in our result. 
Result so far: 260039.7577
Subtracting 1127 from 1230 leaves us with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

The final outcome is 260039.7577, with a leftover of 0.00103.