We divide 23928129 by 420
Our goal is to divide 23928129 by 420.

Advancing to step 1:
420 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 420

Going ahead to step 2:
If we divide 23 by 420, we get 0 and a remainder of 23.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 23 to get 23.
Append the next digit (9) from the dividend to 23 and continue with: 239 / 420

Let's proceed to step 3:
When dividing 239 by 420, we get 0 with a remainder of 239.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 239, we get 239.
Take the next digit (2) from the dividend and append it to 239, then repeat: 2392 / 420

Going ahead to step 4:
420 can be fit into 2392 5 times, resulting in a remainder of 292.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 2100 from 2392 to get 292.
Grab the next digit (8) from the dividend, add it to 292, then carry on: 2928 / 420

Let's proceed to step 5:
420 goes into 2928 6 times with a remainder of 408.
Write down 6 as next digit of the result. 
Result so far: 56.0
The remainder is 408 after subtracting 2520 from 2928.
Grab the next digit (1) from the dividend, add it to 408, then carry on: 4081 / 420

Let's proceed to step 6:
4081 divided by 420 is 9 with a remainder of 301.
The next digit of our result is 9. 
Result so far: 569.0
Deduct 3780 from 4081 and we're left with 301.
Append the next digit (2) from the dividend to 301 and continue with: 3012 / 420

Moving on to step 7:
3012 divided by 420 is 7 with a remainder of 72.
The next digit of our result is 7. 
Result so far: 5697.0
The remainder is 72 after subtracting 2940 from 3012.
Grab the next digit (9) from the dividend, add it to 72, then carry on: 729 / 420

Let's proceed to step 8:
If we divide 729 by 420, we get 1 and a remainder of 309.
Write down 1 as next digit of the result. 
Result so far: 56971.0
Subtracting 420 from 729 leaves us with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Let's proceed to step 9:
420 can be fit into 3090 7 times, resulting in a remainder of 150.
The next digit of our result is 7. 
Result so far: 56971.7
If we take 2940 away from 3090, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 10:
If we divide 1500 by 420, we get 3 and a remainder of 240.
Use 3 as the next digit of our solution. 
Result so far: 56971.73
If we take 1260 away from 1500, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 11:
The number 420 fits into 2400 5 times, leaving a remainder of 300.
Record the quotient 5 as the next digit in the result. 
Result so far: 56971.735
If we subtract 2100 from 2400, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 12:
The number 420 fits into 3000 7 times, leaving a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 56971.7357
Subtracting 2940 from 3000 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
420 goes into 600 1 times with a remainder of 180.
The number 1 becomes the next digit in our result. 
Result so far: 56971.73571
The remainder is 180 after subtracting 420 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Advancing to step 14:
420 goes into 1800 4 times with a remainder of 120.
Put 4 as the next digit of the answer. 
Result so far: 56971.735714
Subtracting 1680 from 1800 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 15:
1200 divided by 420 is 2 with a remainder of 360.
Use 2 as the next digit of our solution. 
Result so far: 56971.7357142
Deduct 840 from 1200 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 16:
420 can be fit into 3600 8 times, resulting in a remainder of 240.
The next digit of our result is 8. 
Result so far: 56971.73571428
Subtract 3360 from 3600 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

After the division, we end up with 56971.73571428 and a remainder of 2.4e-07.