858090 ÷ 57 
Our goal is to divide 858090 by 57.

Going ahead to step 1:
If we divide 8 by 57, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 57

Let's proceed to step 2:
The number 57 fits into 85 1 times, leaving a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 57 from 85 and we're left with 28.
Fetch the next digit (8) from the dividend, attach it to 28 and continue: 288 / 57

Let's proceed to step 3:
57 goes into 288 5 times with a remainder of 3.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 285 from 288 and we're left with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 57

Advancing to step 4:
When dividing 30 by 57, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 150.0
If we take 0 away from 30, we end up with 30.
Grab the next digit (9) from the dividend, add it to 30, then carry on: 309 / 57

Let's proceed to step 5:
When dividing 309 by 57, we get 5 with a remainder of 24.
Use 5 as the next digit of our solution. 
Result so far: 1505.0
The remainder is 24 after subtracting 285 from 309.
Bring next digit (0) of the dividend behind the 24 and repeat the process: 240 / 57

Moving on to step 6:
If we divide 240 by 57, we get 4 and a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 15054.0
Deduct 228 from 240 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
57 goes into 120 2 times with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 15054.2
If we subtract 114 from 120, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
57 goes into 60 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 15054.21
If we take 57 away from 60, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
When dividing 30 by 57, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 15054.21
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
The number 57 fits into 300 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 15054.2105
Deduct 285 from 300 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 11:
When dividing 150 by 57, we get 2 with a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 15054.21052
Subtract 114 from 150 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
The number 57 fits into 360 6 times, leaving a remainder of 18.
The next digit of our result is 6. 
Result so far: 15054.210526
The remainder is 18 after subtracting 342 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 13:
The number 57 fits into 180 3 times, leaving a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 15054.2105263
The remainder is 9 after subtracting 171 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 14:
57 goes into 90 1 times with a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 15054.21052631
If we subtract 57 from 90, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

In conclusion, the division gives 15054.21052631 with a balance of 3.3e-08.