42845270 ÷ 819 
We want to figure out the number of times 42845270 can be divided by 819.

Advancing to step 1:
When dividing 4 by 819, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 819

Moving on to step 2:
When dividing 42 by 819, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Include the next digit (8) from the dividend after 42, then repeat: 428 / 819

Moving on to step 3:
When dividing 428 by 819, we get 0 with a remainder of 428.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 428 and we're left with 428.
Include the next digit (4) from the dividend after 428, then repeat: 4284 / 819

Let's proceed to step 4:
When dividing 4284 by 819, we get 5 with a remainder of 189.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 4095 from 4284 and we're left with 189.
Take the next digit (5) from the dividend and append it to 189, then repeat: 1895 / 819

Let's proceed to step 5:
The number 819 fits into 1895 2 times, leaving a remainder of 257.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
If we take 1638 away from 1895, we end up with 257.
Include the next digit (2) from the dividend after 257, then repeat: 2572 / 819

Going ahead to step 6:
When dividing 2572 by 819, we get 3 with a remainder of 115.
Record the quotient 3 as the next digit in the result. 
Result so far: 523.0
If we take 2457 away from 2572, we end up with 115.
Include the next digit (7) from the dividend after 115, then repeat: 1157 / 819

Going ahead to step 7:
819 goes into 1157 1 times with a remainder of 338.
The next digit of our result is 1. 
Result so far: 5231.0
If we take 819 away from 1157, we end up with 338.
Bring next digit (0) of the dividend behind the 338 and repeat the process: 3380 / 819

Going ahead to step 8:
If we divide 3380 by 819, we get 4 and a remainder of 104.
The number 4 becomes the next digit in our result. 
Result so far: 52314.0
The remainder is 104 after subtracting 3276 from 3380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 9:
The number 819 fits into 1040 1 times, leaving a remainder of 221.
Record the quotient 1 as the next digit in the result. 
Result so far: 52314.1
If we take 819 away from 1040, we end up with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Moving on to step 10:
819 goes into 2210 2 times with a remainder of 572.
The number 2 becomes the next digit in our result. 
Result so far: 52314.12
The remainder is 572 after subtracting 1638 from 2210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Let's proceed to step 11:
If we divide 5720 by 819, we get 6 and a remainder of 806.
Write down 6 as next digit of the result. 
Result so far: 52314.126
If we take 4914 away from 5720, we end up with 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

On to step 12:
8060 divided by 819 is 9 with a remainder of 689.
The number 9 becomes the next digit in our result. 
Result so far: 52314.1269
Subtract 7371 from 8060 to get 689.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6890, and continue the process.

Going ahead to step 13:
When dividing 6890 by 819, we get 8 with a remainder of 338.
Record the quotient 8 as the next digit in the result. 
Result so far: 52314.12698
If we take 6552 away from 6890, we end up with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

On to step 14:
When dividing 3380 by 819, we get 4 with a remainder of 104.
The next digit of our result is 4. 
Result so far: 52314.126984
The remainder is 104 after subtracting 3276 from 3380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 15:
1040 divided by 819 is 1 with a remainder of 221.
The next digit of our result is 1. 
Result so far: 52314.1269841
Deduct 819 from 1040 and we're left with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Step 16:
819 can be fit into 2210 2 times, resulting in a remainder of 572.
Put 2 as the next digit of the answer. 
Result so far: 52314.12698412
If we take 1638 away from 2210, we end up with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Our division results in 52314.12698412 with a remaining 5.72e-07.