40740479 divided by 420 
We want to figure out the number of times 40740479 can be divided by 420.

Advancing to step 1:
If we divide 4 by 420, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 420

On to step 2:
If we divide 40 by 420, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Bring next digit (7) of the dividend behind the 40 and repeat the process: 407 / 420

Step 3:
When dividing 407 by 420, we get 0 with a remainder of 407.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 407 and we're left with 407.
Bring next digit (4) of the dividend behind the 407 and repeat the process: 4074 / 420

Let's proceed to step 4:
When dividing 4074 by 420, we get 9 with a remainder of 294.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 3780 from 4074 and we're left with 294.
Include the next digit (0) from the dividend after 294, then repeat: 2940 / 420

Step 5:
When dividing 2940 by 420, we get 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 97.0
Subtracting 2940 from 2940 leaves us with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 420

Moving on to step 6:
When dividing 4 by 420, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 970.0
If we subtract 0 from 4, we get 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 420

Moving on to step 7:
The number 420 fits into 47 0 times, leaving a remainder of 47.
Write down 0 as next digit of the result. 
Result so far: 9700.0
Subtracting 0 from 47 leaves us with 47.
Bring next digit (9) of the dividend behind the 47 and repeat the process: 479 / 420

Step 8:
420 can be fit into 479 1 times, resulting in a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 97001.0
Deduct 420 from 479 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 9:
When dividing 590 by 420, we get 1 with a remainder of 170.
Record the quotient 1 as the next digit in the result. 
Result so far: 97001.1
Subtract 420 from 590 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 10:
420 can be fit into 1700 4 times, resulting in a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 97001.14
Subtracting 1680 from 1700 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
When dividing 200 by 420, we get 0 with a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 97001.14
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
When dividing 2000 by 420, we get 4 with a remainder of 320.
Write down 4 as next digit of the result. 
Result so far: 97001.1404
Subtract 1680 from 2000 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 13:
3200 divided by 420 is 7 with a remainder of 260.
The next digit of our result is 7. 
Result so far: 97001.14047
If we take 2940 away from 3200, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 14:
420 goes into 2600 6 times with a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 97001.140476
The remainder is 80 after subtracting 2520 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 15:
If we divide 800 by 420, we get 1 and a remainder of 380.
The number 1 becomes the next digit in our result. 
Result so far: 97001.1404761
The remainder is 380 after subtracting 420 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 16:
420 goes into 3800 9 times with a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 97001.14047619
If we subtract 3780 from 3800, 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.

In conclusion, the division gives 97001.14047619 with a balance of 2e-08.