Let's divide 4019421 by 10
We're looking to find how many times 10 goes into 4019421.

Let's proceed to step 1:
When dividing 4 by 10, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 10

Advancing to step 2:
The number 10 fits into 40 4 times, leaving a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 40 from 40, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 10

Advancing to step 3:
If we divide 1 by 10, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 10

Going ahead to step 4:
10 can be fit into 19 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 401.0
If we subtract 10 from 19, we get 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 10

Advancing to step 5:
10 goes into 94 9 times with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 4019.0
Subtracting 90 from 94 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 10

On to step 6:
When dividing 42 by 10, we get 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 40194.0
If we take 40 away from 42, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 10

Step 7:
The number 10 fits into 21 2 times, leaving a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 401942.0
If we subtract 20 from 21, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
10 can be fit into 10 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 401942.1
If we take 10 away from 10, we end up 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.

Moving on to step 9:
The number 10 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 401942.1
If we take 0 away from 0, we end up 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.

Moving on to step 10:
10 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 401942.1
Subtract 0 from 0 to 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.

The final outcome is 401942.1, with a leftover of 0.0.