Let's divide 86230133 by 420
We want to divide 86230133 by 420.

Advancing to step 1:
If we divide 8 by 420, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 420

Going ahead to step 2:
When dividing 86 by 420, we get 0 with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Fetch the next digit (2) from the dividend, attach it to 86 and continue: 862 / 420

Step 3:
When dividing 862 by 420, we get 2 with a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 840 from 862 leaves us with 22.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 420

On to step 4:
The number 420 fits into 223 0 times, leaving a remainder of 223.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtracting 0 from 223 leaves us with 223.
Include the next digit (0) from the dividend after 223, then repeat: 2230 / 420

On to step 5:
420 goes into 2230 5 times with a remainder of 130.
The next digit of our result is 5. 
Result so far: 205.0
Subtracting 2100 from 2230 leaves us with 130.
Grab the next digit (1) from the dividend, add it to 130, then carry on: 1301 / 420

Advancing to step 6:
The number 420 fits into 1301 3 times, leaving a remainder of 41.
The next digit of our result is 3. 
Result so far: 2053.0
Subtract 1260 from 1301 to get 41.
Take the next digit (3) from the dividend and append it to 41, then repeat: 413 / 420

Going ahead to step 7:
413 divided by 420 is 0 with a remainder of 413.
The number 0 becomes the next digit in our result. 
Result so far: 20530.0
Deduct 0 from 413 and we're left with 413.
Fetch the next digit (3) from the dividend, attach it to 413 and continue: 4133 / 420

Going ahead to step 8:
When dividing 4133 by 420, we get 9 with a remainder of 353.
The next digit of our result is 9. 
Result so far: 205309.0
If we subtract 3780 from 4133, we get 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Moving on to step 9:
When dividing 3530 by 420, we get 8 with a remainder of 170.
Put 8 as the next digit of the answer. 
Result so far: 205309.8
Deduct 3360 from 3530 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 10:
420 goes into 1700 4 times with a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 205309.84
If we take 1680 away from 1700, we end up 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.

Step 11:
If we divide 200 by 420, we get 0 and a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 205309.84
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.

Step 12:
2000 divided by 420 is 4 with a remainder of 320.
Write down 4 as next digit of the result. 
Result so far: 205309.8404
If we take 1680 away from 2000, we end up 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.

Step 13:
3200 divided by 420 is 7 with a remainder of 260.
The next digit of our result is 7. 
Result so far: 205309.84047
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.

Step 14:
420 can be fit into 2600 6 times, resulting in a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 205309.840476
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.

Let's proceed to step 15:
420 goes into 800 1 times with a remainder of 380.
Use 1 as the next digit of our solution. 
Result so far: 205309.8404761
If we subtract 420 from 800, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 16:
420 can be fit into 3800 9 times, resulting in a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 205309.84047619
If we take 3780 away from 3800, we end up 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.

After the division, we end up with 205309.84047619 and a remainder of 2e-08.