15128420 divided by 355 
Let's see how many times 355 fits into 15128420.

Moving on to step 1:
1 divided by 355 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 355

Advancing to step 2:
355 goes into 15 0 times with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 355

Step 3:
The number 355 fits into 151 0 times, leaving a remainder of 151.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 151, we end up with 151.
Fetch the next digit (2) from the dividend, attach it to 151 and continue: 1512 / 355

On to step 4:
355 goes into 1512 4 times with a remainder of 92.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 92 after subtracting 1420 from 1512.
Fetch the next digit (8) from the dividend, attach it to 92 and continue: 928 / 355

Advancing to step 5:
355 can be fit into 928 2 times, resulting in a remainder of 218.
Use 2 as the next digit of our solution. 
Result so far: 42.0
The remainder is 218 after subtracting 710 from 928.
Include the next digit (4) from the dividend after 218, then repeat: 2184 / 355

Moving on to step 6:
The number 355 fits into 2184 6 times, leaving a remainder of 54.
Put 6 as the next digit of the answer. 
Result so far: 426.0
Deduct 2130 from 2184 and we're left with 54.
Grab the next digit (2) from the dividend, add it to 54, then carry on: 542 / 355

On to step 7:
355 can be fit into 542 1 times, resulting in a remainder of 187.
Use 1 as the next digit of our solution. 
Result so far: 4261.0
Subtracting 355 from 542 leaves us with 187.
Append the next digit (0) from the dividend to 187 and continue with: 1870 / 355

Moving on to step 8:
If we divide 1870 by 355, we get 5 and a remainder of 95.
Record the quotient 5 as the next digit in the result. 
Result so far: 42615.0
Deduct 1775 from 1870 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 9:
355 can be fit into 950 2 times, resulting in a remainder of 240.
Put 2 as the next digit of the answer. 
Result so far: 42615.2
If we subtract 710 from 950, 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.

Going ahead to step 10:
355 can be fit into 2400 6 times, resulting in a remainder of 270.
The next digit of our result is 6. 
Result so far: 42615.26
If we take 2130 away from 2400, we end up with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 11:
355 can be fit into 2700 7 times, resulting in a remainder of 215.
Record the quotient 7 as the next digit in the result. 
Result so far: 42615.267
The remainder is 215 after subtracting 2485 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 12:
If we divide 2150 by 355, we get 6 and a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 42615.2676
The remainder is 20 after subtracting 2130 from 2150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
355 can be fit into 200 0 times, resulting in a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 42615.2676
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 14:
The number 355 fits into 2000 5 times, leaving a remainder of 225.
Use 5 as the next digit of our solution. 
Result so far: 42615.267605
Subtract 1775 from 2000 to get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Let's proceed to step 15:
If we divide 2250 by 355, we get 6 and a remainder of 120.
The next digit of our result is 6. 
Result so far: 42615.2676056
Subtract 2130 from 2250 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 16:
355 goes into 1200 3 times with a remainder of 135.
The number 3 becomes the next digit in our result. 
Result so far: 42615.26760563
Subtract 1065 from 1200 to get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Our division results in 42615.26760563 with a remaining 1.35e-07.