We're dividing 86703469 by 420 
Our goal is to divide 86703469 by 420.

On to step 1:
8 divided by 420 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 420

Advancing to step 2:
If we divide 86 by 420, we get 0 and a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Fetch the next digit (7) from the dividend, attach it to 86 and continue: 867 / 420

Moving on to step 3:
867 divided by 420 is 2 with a remainder of 27.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 27 after subtracting 840 from 867.
Fetch the next digit (0) from the dividend, attach it to 27 and continue: 270 / 420

Going ahead to step 4:
270 divided by 420 is 0 with a remainder of 270.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we subtract 0 from 270, we get 270.
Include the next digit (3) from the dividend after 270, then repeat: 2703 / 420

Advancing to step 5:
2703 divided by 420 is 6 with a remainder of 183.
Put 6 as the next digit of the answer. 
Result so far: 206.0
If we take 2520 away from 2703, we end up with 183.
Include the next digit (4) from the dividend after 183, then repeat: 1834 / 420

Let's proceed to step 6:
420 can be fit into 1834 4 times, resulting in a remainder of 154.
Write down 4 as next digit of the result. 
Result so far: 2064.0
The remainder is 154 after subtracting 1680 from 1834.
Append the next digit (6) from the dividend to 154 and continue with: 1546 / 420

Let's proceed to step 7:
420 goes into 1546 3 times with a remainder of 286.
Put 3 as the next digit of the answer. 
Result so far: 20643.0
Deduct 1260 from 1546 and we're left with 286.
Grab the next digit (9) from the dividend, add it to 286, then carry on: 2869 / 420

Going ahead to step 8:
420 can be fit into 2869 6 times, resulting in a remainder of 349.
Record the quotient 6 as the next digit in the result. 
Result so far: 206436.0
Subtract 2520 from 2869 to get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Advancing to step 9:
When dividing 3490 by 420, we get 8 with a remainder of 130.
Use 8 as the next digit of our solution. 
Result so far: 206436.8
If we take 3360 away from 3490, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 10:
420 goes into 1300 3 times with a remainder of 40.
The next digit of our result is 3. 
Result so far: 206436.83
If we take 1260 away from 1300, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 11:
420 goes into 400 0 times with a remainder of 400.
The next digit of our result is 0. 
Result so far: 206436.83
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 12:
If we divide 4000 by 420, we get 9 and a remainder of 220.
The number 9 becomes the next digit in our result. 
Result so far: 206436.8309
If we take 3780 away from 4000, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 13:
2200 divided by 420 is 5 with a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 206436.83095
Subtracting 2100 from 2200 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 14:
420 can be fit into 1000 2 times, resulting in a remainder of 160.
Use 2 as the next digit of our solution. 
Result so far: 206436.830952
If we take 840 away from 1000, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 15:
420 goes into 1600 3 times with a remainder of 340.
Record the quotient 3 as the next digit in the result. 
Result so far: 206436.8309523
Deduct 1260 from 1600 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 16:
420 goes into 3400 8 times with a remainder of 40.
The next digit of our result is 8. 
Result so far: 206436.83095238
If we subtract 3360 from 3400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 206436.83095238 and a remainder of 4e-08.