We look at the division of 406121 by 23 
Let's see how many times 23 fits into 406121.

Advancing to step 1:
23 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 23

Going ahead to step 2:
23 can be fit into 40 1 times, resulting in a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 23 from 40 and we're left with 17.
Append the next digit (6) from the dividend to 17 and continue with: 176 / 23

On to step 3:
176 divided by 23 is 7 with a remainder of 15.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 15 after subtracting 161 from 176.
Append the next digit (1) from the dividend to 15 and continue with: 151 / 23

Advancing to step 4:
The number 23 fits into 151 6 times, leaving a remainder of 13.
Put 6 as the next digit of the answer. 
Result so far: 176.0
Subtract 138 from 151 to get 13.
Bring next digit (2) of the dividend behind the 13 and repeat the process: 132 / 23

On to step 5:
When dividing 132 by 23, we get 5 with a remainder of 17.
Record the quotient 5 as the next digit in the result. 
Result so far: 1765.0
Deduct 115 from 132 and we're left with 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 23

Advancing to step 6:
23 can be fit into 171 7 times, resulting in a remainder of 10.
The next digit of our result is 7. 
Result so far: 17657.0
If we subtract 161 from 171, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
When dividing 100 by 23, we get 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 17657.4
Subtract 92 from 100 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 8:
When dividing 80 by 23, we get 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 17657.43
Deduct 69 from 80 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
When dividing 110 by 23, we get 4 with a remainder of 18.
The next digit of our result is 4. 
Result so far: 17657.434
If we subtract 92 from 110, 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.

Let's proceed to step 10:
23 can be fit into 180 7 times, resulting in a remainder of 19.
The next digit of our result is 7. 
Result so far: 17657.4347
Deduct 161 from 180 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 11:
The number 23 fits into 190 8 times, leaving a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 17657.43478
The remainder is 6 after subtracting 184 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 12:
When dividing 60 by 23, we get 2 with a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 17657.434782
The remainder is 14 after subtracting 46 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 13:
23 goes into 140 6 times with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 17657.4347826
Subtracting 138 from 140 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 14:
The number 23 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 17657.4347826
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 17657.4347826 with a balance of 2e-08.