420059 divided by 40 
We're looking to find how many times 40 goes into 420059.

Going ahead to step 1:
40 can be fit into 4 0 times, resulting in 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.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 40

Going ahead to step 2:
If we divide 42 by 40, we get 1 and a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 40 from 42, we get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 40

On to step 3:
40 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 20 leaves us with 20.
Append the next digit (0) from the dividend to 20 and continue with: 200 / 40

Going ahead to step 4:
40 can be fit into 200 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 105.0
Subtract 200 from 200 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 40

Going ahead to step 5:
40 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 1050.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 40

Advancing to step 6:
If we divide 59 by 40, we get 1 and a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 10501.0
If we take 40 away from 59, we end up 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.

Advancing to step 7:
190 divided by 40 is 4 with a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 10501.4
The remainder is 30 after subtracting 160 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
When dividing 300 by 40, we get 7 with a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 10501.47
If we subtract 280 from 300, we 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.

Advancing to step 9:
40 can be fit into 200 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 10501.475
Subtracting 200 from 200 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
0 divided by 40 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10501.475
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
0 divided by 40 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10501.475
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 10501.475 with a remainder of 0.0.