18452051 ÷ 420 
Our goal is to divide 18452051 by 420.

Advancing to step 1:
420 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 420

Moving on to step 2:
If we divide 18 by 420, we get 0 and a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Grab the next digit (4) from the dividend, add it to 18, then carry on: 184 / 420

Advancing to step 3:
When dividing 184 by 420, we get 0 with a remainder of 184.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 184 and we're left with 184.
Fetch the next digit (5) from the dividend, attach it to 184 and continue: 1845 / 420

Step 4:
The number 420 fits into 1845 4 times, leaving a remainder of 165.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 1680 away from 1845, we end up with 165.
Include the next digit (2) from the dividend after 165, then repeat: 1652 / 420

Moving on to step 5:
420 goes into 1652 3 times with a remainder of 392.
Put 3 as the next digit of the answer. 
Result so far: 43.0
Subtracting 1260 from 1652 leaves us with 392.
Take the next digit (0) from the dividend and append it to 392, then repeat: 3920 / 420

Step 6:
When dividing 3920 by 420, we get 9 with a remainder of 140.
The next digit of our result is 9. 
Result so far: 439.0
Subtract 3780 from 3920 to get 140.
Append the next digit (5) from the dividend to 140 and continue with: 1405 / 420

Let's proceed to step 7:
420 can be fit into 1405 3 times, resulting in a remainder of 145.
Record the quotient 3 as the next digit in the result. 
Result so far: 4393.0
Subtract 1260 from 1405 to get 145.
Include the next digit (1) from the dividend after 145, then repeat: 1451 / 420

Going ahead to step 8:
The number 420 fits into 1451 3 times, leaving a remainder of 191.
Write down 3 as next digit of the result. 
Result so far: 43933.0
If we subtract 1260 from 1451, we get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Going ahead to step 9:
420 can be fit into 1910 4 times, resulting in a remainder of 230.
The number 4 becomes the next digit in our result. 
Result so far: 43933.4
Deduct 1680 from 1910 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 10:
2300 divided by 420 is 5 with a remainder of 200.
Record the quotient 5 as the next digit in the result. 
Result so far: 43933.45
Deduct 2100 from 2300 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 11:
When dividing 2000 by 420, we get 4 with a remainder of 320.
Record the quotient 4 as the next digit in the result. 
Result so far: 43933.454
Subtracting 1680 from 2000 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 12:
The number 420 fits into 3200 7 times, leaving a remainder of 260.
The next digit of our result is 7. 
Result so far: 43933.4547
Deduct 2940 from 3200 and we're left 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.

Moving on to step 13:
If we divide 2600 by 420, we get 6 and a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 43933.45476
Subtract 2520 from 2600 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 14:
420 can be fit into 800 1 times, resulting in a remainder of 380.
Record the quotient 1 as the next digit in the result. 
Result so far: 43933.454761
Deduct 420 from 800 and we're left with 380.
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 15:
If we divide 3800 by 420, we get 9 and a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 43933.4547619
The remainder is 20 after subtracting 3780 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 16:
420 can be fit into 200 0 times, resulting in a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 43933.4547619
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.

The final result is 43933.4547619 with a remainder of 2e-07.