We're dividing 1584701 by 420 
Let's see how many times 420 fits into 1584701.

Let's proceed to step 1:
420 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 420

Advancing to step 2:
The number 420 fits into 15 0 times, leaving a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 420

On to step 3:
When dividing 158 by 420, we get 0 with a remainder of 158.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 158, we get 158.
Append the next digit (4) from the dividend to 158 and continue with: 1584 / 420

Moving on to step 4:
If we divide 1584 by 420, we get 3 and a remainder of 324.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 1260 away from 1584, we end up with 324.
Append the next digit (7) from the dividend to 324 and continue with: 3247 / 420

Going ahead to step 5:
The number 420 fits into 3247 7 times, leaving a remainder of 307.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
If we subtract 2940 from 3247, we get 307.
Include the next digit (0) from the dividend after 307, then repeat: 3070 / 420

Going ahead to step 6:
When dividing 3070 by 420, we get 7 with a remainder of 130.
Put 7 as the next digit of the answer. 
Result so far: 377.0
Subtracting 2940 from 3070 leaves us with 130.
Append the next digit (1) from the dividend to 130 and continue with: 1301 / 420

Let's proceed to step 7:
The number 420 fits into 1301 3 times, leaving a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 3773.0
The remainder is 41 after subtracting 1260 from 1301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 8:
420 goes into 410 0 times with a remainder of 410.
The number 0 becomes the next digit in our result. 
Result so far: 3773.0
Subtract 0 from 410 to get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 9:
420 goes into 4100 9 times with a remainder of 320.
Put 9 as the next digit of the answer. 
Result so far: 3773.09
Subtracting 3780 from 4100 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.

On to step 10:
420 goes into 3200 7 times with a remainder of 260.
Record the quotient 7 as the next digit in the result. 
Result so far: 3773.097
The remainder is 260 after subtracting 2940 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 11:
The number 420 fits into 2600 6 times, leaving a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 3773.0976
If we subtract 2520 from 2600, we 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.

Going ahead to step 12:
If we divide 800 by 420, we get 1 and a remainder of 380.
Use 1 as the next digit of our solution. 
Result so far: 3773.09761
If we take 420 away from 800, we end up 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 13:
When dividing 3800 by 420, we get 9 with a remainder of 20.
Put 9 as the next digit of the answer. 
Result so far: 3773.097619
Subtracting 3780 from 3800 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.

On to step 14:
420 can be fit into 200 0 times, resulting in a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 3773.097619
Subtracting 0 from 200 leaves us 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 15:
The number 420 fits into 2000 4 times, leaving a remainder of 320.
Record the quotient 4 as the next digit in the result. 
Result so far: 3773.09761904
The remainder is 320 after subtracting 1680 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final outcome is 3773.09761904, with a leftover of 3.2e-07.