40131271 divided by 420 
Let's see how many times 420 fits into 40131271.

Let's proceed to step 1:
420 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 420

Step 2:
The number 420 fits into 40 0 times, leaving a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Bring next digit (1) of the dividend behind the 40 and repeat the process: 401 / 420

Let's proceed to step 3:
420 can be fit into 401 0 times, resulting in a remainder of 401.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 401 after subtracting 0 from 401.
Fetch the next digit (3) from the dividend, attach it to 401 and continue: 4013 / 420

Moving on to step 4:
The number 420 fits into 4013 9 times, leaving a remainder of 233.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 233 after subtracting 3780 from 4013.
Append the next digit (1) from the dividend to 233 and continue with: 2331 / 420

Moving on to step 5:
420 goes into 2331 5 times with a remainder of 231.
The next digit of our result is 5. 
Result so far: 95.0
Subtract 2100 from 2331 to get 231.
Append the next digit (2) from the dividend to 231 and continue with: 2312 / 420

On to step 6:
If we divide 2312 by 420, we get 5 and a remainder of 212.
Put 5 as the next digit of the answer. 
Result so far: 955.0
The remainder is 212 after subtracting 2100 from 2312.
Append the next digit (7) from the dividend to 212 and continue with: 2127 / 420

Moving on to step 7:
420 can be fit into 2127 5 times, resulting in a remainder of 27.
The next digit of our result is 5. 
Result so far: 9555.0
If we take 2100 away from 2127, we end up with 27.
Grab the next digit (1) from the dividend, add it to 27, then carry on: 271 / 420

Moving on to step 8:
420 goes into 271 0 times with a remainder of 271.
Write down 0 as next digit of the result. 
Result so far: 95550.0
Subtracting 0 from 271 leaves us with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Moving on to step 9:
2710 divided by 420 is 6 with a remainder of 190.
The next digit of our result is 6. 
Result so far: 95550.6
Subtracting 2520 from 2710 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 10:
420 goes into 1900 4 times with a remainder of 220.
Write down 4 as next digit of the result. 
Result so far: 95550.64
Subtract 1680 from 1900 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 11:
If we divide 2200 by 420, we get 5 and a remainder of 100.
Put 5 as the next digit of the answer. 
Result so far: 95550.645
If we take 2100 away from 2200, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 12:
1000 divided by 420 is 2 with a remainder of 160.
Write down 2 as next digit of the result. 
Result so far: 95550.6452
The remainder is 160 after subtracting 840 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 13:
420 goes into 1600 3 times with a remainder of 340.
The number 3 becomes the next digit in our result. 
Result so far: 95550.64523
Subtracting 1260 from 1600 leaves us with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 14:
420 goes into 3400 8 times with a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 95550.645238
The remainder is 40 after subtracting 3360 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 15:
420 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 95550.645238
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 16:
420 can be fit into 4000 9 times, resulting in a remainder of 220.
Write down 9 as next digit of the result. 
Result so far: 95550.64523809
Deduct 3780 from 4000 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

In conclusion, the division gives 95550.64523809 with a balance of 2.2e-07.