Let's divide 99227290 by 420
Our goal is to divide 99227290 by 420.

Step 1:
420 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 420

Advancing to step 2:
420 goes into 99 0 times with a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Include the next digit (2) from the dividend after 99, then repeat: 992 / 420

Moving on to step 3:
992 divided by 420 is 2 with a remainder of 152.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 840 from 992 leaves us with 152.
Grab the next digit (2) from the dividend, add it to 152, then carry on: 1522 / 420

Advancing to step 4:
When dividing 1522 by 420, we get 3 with a remainder of 262.
The next digit of our result is 3. 
Result so far: 23.0
Deduct 1260 from 1522 and we're left with 262.
Fetch the next digit (7) from the dividend, attach it to 262 and continue: 2627 / 420

Moving on to step 5:
420 goes into 2627 6 times with a remainder of 107.
Record the quotient 6 as the next digit in the result. 
Result so far: 236.0
If we take 2520 away from 2627, we end up with 107.
Include the next digit (2) from the dividend after 107, then repeat: 1072 / 420

Moving on to step 6:
When dividing 1072 by 420, we get 2 with a remainder of 232.
Write down 2 as next digit of the result. 
Result so far: 2362.0
The remainder is 232 after subtracting 840 from 1072.
Include the next digit (9) from the dividend after 232, then repeat: 2329 / 420

On to step 7:
When dividing 2329 by 420, we get 5 with a remainder of 229.
Record the quotient 5 as the next digit in the result. 
Result so far: 23625.0
Subtract 2100 from 2329 to get 229.
Bring next digit (0) of the dividend behind the 229 and repeat the process: 2290 / 420

Step 8:
2290 divided by 420 is 5 with a remainder of 190.
Write down 5 as next digit of the result. 
Result so far: 236255.0
If we subtract 2100 from 2290, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 9:
1900 divided by 420 is 4 with a remainder of 220.
Write down 4 as next digit of the result. 
Result so far: 236255.4
Deduct 1680 from 1900 and we're left 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.

On to step 10:
If we divide 2200 by 420, we get 5 and a remainder of 100.
The next digit of our result is 5. 
Result so far: 236255.45
Deduct 2100 from 2200 and we're left 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.

Let's proceed to step 11:
420 goes into 1000 2 times with a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 236255.452
Deduct 840 from 1000 and we're left 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.

Step 12:
420 can be fit into 1600 3 times, resulting in a remainder of 340.
Put 3 as the next digit of the answer. 
Result so far: 236255.4523
If we take 1260 away from 1600, we end up 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.

Going ahead to step 13:
420 can be fit into 3400 8 times, resulting in a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 236255.45238
If we take 3360 away from 3400, 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.

On to step 14:
The number 420 fits into 400 0 times, leaving a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 236255.45238
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 15:
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: 236255.4523809
Subtracting 3780 from 4000 leaves us 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.

Step 16:
If we divide 2200 by 420, we get 5 and a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 236255.45238095
If we take 2100 away from 2200, we end up 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.

In conclusion, the division gives 236255.45238095 with a balance of 1e-07.