We're dividing 99316632 by 420 
We want to divide 99316632 by 420.

Advancing to step 1:
420 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 420

Moving on to step 2:
If we divide 99 by 420, we get 0 and a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 99, we end up with 99.
Fetch the next digit (3) from the dividend, attach it to 99 and continue: 993 / 420

Step 3:
420 goes into 993 2 times with a remainder of 153.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 840 from 993 and we're left with 153.
Grab the next digit (1) from the dividend, add it to 153, then carry on: 1531 / 420

Going ahead to step 4:
420 can be fit into 1531 3 times, resulting in a remainder of 271.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Deduct 1260 from 1531 and we're left with 271.
Append the next digit (6) from the dividend to 271 and continue with: 2716 / 420

On to step 5:
When dividing 2716 by 420, we get 6 with a remainder of 196.
The next digit of our result is 6. 
Result so far: 236.0
The remainder is 196 after subtracting 2520 from 2716.
Take the next digit (6) from the dividend and append it to 196, then repeat: 1966 / 420

Let's proceed to step 6:
If we divide 1966 by 420, we get 4 and a remainder of 286.
Put 4 as the next digit of the answer. 
Result so far: 2364.0
If we take 1680 away from 1966, we end up with 286.
Bring next digit (3) of the dividend behind the 286 and repeat the process: 2863 / 420

Moving on to step 7:
420 goes into 2863 6 times with a remainder of 343.
Record the quotient 6 as the next digit in the result. 
Result so far: 23646.0
If we subtract 2520 from 2863, we get 343.
Grab the next digit (2) from the dividend, add it to 343, then carry on: 3432 / 420

Step 8:
420 can be fit into 3432 8 times, resulting in a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 236468.0
If we subtract 3360 from 3432, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 9:
When dividing 720 by 420, we get 1 with a remainder of 300.
Record the quotient 1 as the next digit in the result. 
Result so far: 236468.1
Subtract 420 from 720 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 10:
If we divide 3000 by 420, we get 7 and a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 236468.17
Deduct 2940 from 3000 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 11:
If we divide 600 by 420, we get 1 and a remainder of 180.
The number 1 becomes the next digit in our result. 
Result so far: 236468.171
Subtract 420 from 600 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 12:
If we divide 1800 by 420, we get 4 and a remainder of 120.
The number 4 becomes the next digit in our result. 
Result so far: 236468.1714
If we take 1680 away from 1800, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 13:
If we divide 1200 by 420, we get 2 and a remainder of 360.
Record the quotient 2 as the next digit in the result. 
Result so far: 236468.17142
If we subtract 840 from 1200, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 14:
When dividing 3600 by 420, we get 8 with a remainder of 240.
The next digit of our result is 8. 
Result so far: 236468.171428
If we subtract 3360 from 3600, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 15:
420 goes into 2400 5 times with a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 236468.1714285
Deduct 2100 from 2400 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 16:
420 goes into 3000 7 times with a remainder of 60.
Record the quotient 7 as the next digit in the result. 
Result so far: 236468.17142857
The remainder is 60 after subtracting 2940 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 236468.17142857, with a leftover of 6e-08.