99388094 divided by 421 
Our goal is to divide 99388094 by 421.

Step 1:
The number 421 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 421

Step 2:
When dividing 99 by 421, we get 0 with a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Fetch the next digit (3) from the dividend, attach it to 99 and continue: 993 / 421

Going ahead to step 3:
When dividing 993 by 421, we get 2 with a remainder of 151.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 842 away from 993, we end up with 151.
Include the next digit (8) from the dividend after 151, then repeat: 1518 / 421

Moving on to step 4:
If we divide 1518 by 421, we get 3 and a remainder of 255.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Subtract 1263 from 1518 to get 255.
Append the next digit (8) from the dividend to 255 and continue with: 2558 / 421

Step 5:
When dividing 2558 by 421, we get 6 with a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 236.0
The remainder is 32 after subtracting 2526 from 2558.
Grab the next digit (0) from the dividend, add it to 32, then carry on: 320 / 421

Step 6:
The number 421 fits into 320 0 times, leaving a remainder of 320.
Put 0 as the next digit of the answer. 
Result so far: 2360.0
The remainder is 320 after subtracting 0 from 320.
Include the next digit (9) from the dividend after 320, then repeat: 3209 / 421

Moving on to step 7:
When dividing 3209 by 421, we get 7 with a remainder of 262.
Record the quotient 7 as the next digit in the result. 
Result so far: 23607.0
If we subtract 2947 from 3209, we get 262.
Include the next digit (4) from the dividend after 262, then repeat: 2624 / 421

Step 8:
2624 divided by 421 is 6 with a remainder of 98.
Record the quotient 6 as the next digit in the result. 
Result so far: 236076.0
Deduct 2526 from 2624 and we're left with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Advancing to step 9:
When dividing 980 by 421, we get 2 with a remainder of 138.
Put 2 as the next digit of the answer. 
Result so far: 236076.2
If we take 842 away from 980, we end up with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 10:
If we divide 1380 by 421, we get 3 and a remainder of 117.
Put 3 as the next digit of the answer. 
Result so far: 236076.23
The remainder is 117 after subtracting 1263 from 1380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Moving on to step 11:
1170 divided by 421 is 2 with a remainder of 328.
The next digit of our result is 2. 
Result so far: 236076.232
Subtract 842 from 1170 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Advancing to step 12:
The number 421 fits into 3280 7 times, leaving a remainder of 333.
The next digit of our result is 7. 
Result so far: 236076.2327
Subtracting 2947 from 3280 leaves us with 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Moving on to step 13:
When dividing 3330 by 421, we get 7 with a remainder of 383.
Use 7 as the next digit of our solution. 
Result so far: 236076.23277
Subtracting 2947 from 3330 leaves us with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

The quotient of the division is 236076.23277, and the remainder is 0.000383.