We look at the division of 38275774 by 421 
We want to figure out the number of times 38275774 can be divided by 421.

On to step 1:
When dividing 3 by 421, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 421

On to step 2:
The number 421 fits into 38 0 times, leaving a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Include the next digit (2) from the dividend after 38, then repeat: 382 / 421

Going ahead to step 3:
382 divided by 421 is 0 with a remainder of 382.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 382, we end up with 382.
Fetch the next digit (7) from the dividend, attach it to 382 and continue: 3827 / 421

Let's proceed to step 4:
When dividing 3827 by 421, we get 9 with a remainder of 38.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 38 after subtracting 3789 from 3827.
Take the next digit (5) from the dividend and append it to 38, then repeat: 385 / 421

Moving on to step 5:
385 divided by 421 is 0 with a remainder of 385.
The next digit of our result is 0. 
Result so far: 90.0
If we subtract 0 from 385, we get 385.
Take the next digit (7) from the dividend and append it to 385, then repeat: 3857 / 421

Step 6:
If we divide 3857 by 421, we get 9 and a remainder of 68.
The next digit of our result is 9. 
Result so far: 909.0
If we subtract 3789 from 3857, we get 68.
Include the next digit (7) from the dividend after 68, then repeat: 687 / 421

Step 7:
421 goes into 687 1 times with a remainder of 266.
The number 1 becomes the next digit in our result. 
Result so far: 9091.0
If we take 421 away from 687, we end up with 266.
Take the next digit (4) from the dividend and append it to 266, then repeat: 2664 / 421

Step 8:
The number 421 fits into 2664 6 times, leaving a remainder of 138.
Put 6 as the next digit of the answer. 
Result so far: 90916.0
If we take 2526 away from 2664, 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.

Going ahead to step 9:
421 can be fit into 1380 3 times, resulting in a remainder of 117.
Write down 3 as next digit of the result. 
Result so far: 90916.3
If we take 1263 away from 1380, we end up with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Let's proceed to step 10:
The number 421 fits into 1170 2 times, leaving a remainder of 328.
Use 2 as the next digit of our solution. 
Result so far: 90916.32
If we take 842 away from 1170, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Let's proceed to step 11:
When dividing 3280 by 421, we get 7 with a remainder of 333.
The next digit of our result is 7. 
Result so far: 90916.327
Subtract 2947 from 3280 to get 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Step 12:
When dividing 3330 by 421, we get 7 with a remainder of 383.
Put 7 as the next digit of the answer. 
Result so far: 90916.3277
If we subtract 2947 from 3330, we get 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

After the division, we end up with 90916.3277 and a remainder of 0.00383.