We're dividing 42287305 by 420 
We're looking to find how many times 420 goes into 42287305.

Let's proceed to step 1:
420 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 420

Let's proceed to step 2:
420 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (2) from the dividend, add it to 42, then carry on: 422 / 420

Going ahead to step 3:
The number 420 fits into 422 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 420 from 422 to get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 420

On to step 4:
28 divided by 420 is 0 with a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 28 after subtracting 0 from 28.
Include the next digit (7) from the dividend after 28, then repeat: 287 / 420

Step 5:
When dividing 287 by 420, we get 0 with a remainder of 287.
Put 0 as the next digit of the answer. 
Result so far: 100.0
Subtract 0 from 287 to get 287.
Bring next digit (3) of the dividend behind the 287 and repeat the process: 2873 / 420

Moving on to step 6:
2873 divided by 420 is 6 with a remainder of 353.
Write down 6 as next digit of the result. 
Result so far: 1006.0
Deduct 2520 from 2873 and we're left with 353.
Bring next digit (0) of the dividend behind the 353 and repeat the process: 3530 / 420

On to step 7:
420 can be fit into 3530 8 times, resulting in a remainder of 170.
Record the quotient 8 as the next digit in the result. 
Result so far: 10068.0
Subtracting 3360 from 3530 leaves us with 170.
Fetch the next digit (5) from the dividend, attach it to 170 and continue: 1705 / 420

Step 8:
420 can be fit into 1705 4 times, resulting in a remainder of 25.
Put 4 as the next digit of the answer. 
Result so far: 100684.0
If we take 1680 away from 1705, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 9:
If we divide 250 by 420, we get 0 and a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 100684.0
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 10:
The number 420 fits into 2500 5 times, leaving a remainder of 400.
The next digit of our result is 5. 
Result so far: 100684.05
Subtract 2100 from 2500 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 11:
When dividing 4000 by 420, we get 9 with a remainder of 220.
Write down 9 as next digit of the result. 
Result so far: 100684.059
If we take 3780 away from 4000, we end up 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.

Moving on to step 12:
If we divide 2200 by 420, we get 5 and a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 100684.0595
If we subtract 2100 from 2200, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 13:
1000 divided by 420 is 2 with a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 100684.05952
If we subtract 840 from 1000, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 14:
The number 420 fits into 1600 3 times, leaving a remainder of 340.
Use 3 as the next digit of our solution. 
Result so far: 100684.059523
If we take 1260 away from 1600, we end up 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.

Moving on to step 15:
The number 420 fits into 3400 8 times, leaving a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 100684.0595238
Subtract 3360 from 3400 to get 40.
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 16:
If we divide 400 by 420, we get 0 and a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 100684.0595238
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.

In conclusion, the division gives 100684.0595238 with a balance of 4e-07.