We look at the division of 38105059 by 420 
We want to figure out the number of times 38105059 can be divided by 420.

Going ahead to step 1:
If we divide 3 by 420, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 420

Moving on to step 2:
420 can be fit into 38 0 times, resulting in a remainder of 38.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 38, we get 38.
Include the next digit (1) from the dividend after 38, then repeat: 381 / 420

Let's proceed to step 3:
When dividing 381 by 420, we get 0 with a remainder of 381.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 381, we get 381.
Append the next digit (0) from the dividend to 381 and continue with: 3810 / 420

Step 4:
3810 divided by 420 is 9 with a remainder of 30.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 3780 from 3810 to get 30.
Append the next digit (5) from the dividend to 30 and continue with: 305 / 420

Moving on to step 5:
420 goes into 305 0 times with a remainder of 305.
The next digit of our result is 0. 
Result so far: 90.0
Subtract 0 from 305 to get 305.
Take the next digit (0) from the dividend and append it to 305, then repeat: 3050 / 420

Step 6:
420 goes into 3050 7 times with a remainder of 110.
The next digit of our result is 7. 
Result so far: 907.0
Subtract 2940 from 3050 to get 110.
Bring next digit (5) of the dividend behind the 110 and repeat the process: 1105 / 420

Moving on to step 7:
If we divide 1105 by 420, we get 2 and a remainder of 265.
Use 2 as the next digit of our solution. 
Result so far: 9072.0
The remainder is 265 after subtracting 840 from 1105.
Take the next digit (9) from the dividend and append it to 265, then repeat: 2659 / 420

Advancing to step 8:
When dividing 2659 by 420, we get 6 with a remainder of 139.
Record the quotient 6 as the next digit in the result. 
Result so far: 90726.0
Subtract 2520 from 2659 to get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

On to step 9:
420 goes into 1390 3 times with a remainder of 130.
Put 3 as the next digit of the answer. 
Result so far: 90726.3
Subtract 1260 from 1390 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 10:
The number 420 fits into 1300 3 times, leaving a remainder of 40.
The next digit of our result is 3. 
Result so far: 90726.33
Subtract 1260 from 1300 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 90726.33 with a remainder of 0.04.