Let's divide 20451893 by 10
We're looking to find how many times 10 goes into 20451893.

Moving on to step 1:
2 divided by 10 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 10

Moving on to step 2:
10 can be fit into 20 2 times, resulting in a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 0 after subtracting 20 from 20.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 10

On to step 3:
10 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 10

Moving on to step 4:
45 divided by 10 is 4 with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 204.0
Deduct 40 from 45 and we're left with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 10

Advancing to step 5:
10 can be fit into 51 5 times, resulting in a remainder of 1.
The next digit of our result is 5. 
Result so far: 2045.0
If we take 50 away from 51, we end up with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 10

Let's proceed to step 6:
18 divided by 10 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 20451.0
Deduct 10 from 18 and we're left with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 10

Moving on to step 7:
10 goes into 89 8 times with a remainder of 9.
Record the quotient 8 as the next digit in the result. 
Result so far: 204518.0
Deduct 80 from 89 and we're left with 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 10

Let's proceed to step 8:
10 goes into 93 9 times with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 2045189.0
Deduct 90 from 93 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 9:
When dividing 30 by 10, we get 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 2045189.3
If we take 30 away from 30, 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:
0 divided by 10 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2045189.3
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.

On to step 11:
When dividing 0 by 10, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 2045189.3
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.

Our division results in 2045189.3 with a remaining 0.0.