49964257 ÷ 870 
Our goal is to divide 49964257 by 870.

Advancing to step 1:
870 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 870

Advancing to step 2:
If we divide 49 by 870, we get 0 and a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 49 to get 49.
Include the next digit (9) from the dividend after 49, then repeat: 499 / 870

Step 3:
499 divided by 870 is 0 with a remainder of 499.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 499 leaves us with 499.
Include the next digit (6) from the dividend after 499, then repeat: 4996 / 870

Step 4:
4996 divided by 870 is 5 with a remainder of 646.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 4350 from 4996 leaves us with 646.
Append the next digit (4) from the dividend to 646 and continue with: 6464 / 870

Let's proceed to step 5:
870 can be fit into 6464 7 times, resulting in a remainder of 374.
The number 7 becomes the next digit in our result. 
Result so far: 57.0
Subtract 6090 from 6464 to get 374.
Include the next digit (2) from the dividend after 374, then repeat: 3742 / 870

On to step 6:
When dividing 3742 by 870, we get 4 with a remainder of 262.
The number 4 becomes the next digit in our result. 
Result so far: 574.0
Subtracting 3480 from 3742 leaves us with 262.
Append the next digit (5) from the dividend to 262 and continue with: 2625 / 870

Let's proceed to step 7:
The number 870 fits into 2625 3 times, leaving a remainder of 15.
The next digit of our result is 3. 
Result so far: 5743.0
Deduct 2610 from 2625 and we're left with 15.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 870

Step 8:
870 goes into 157 0 times with a remainder of 157.
Write down 0 as next digit of the result. 
Result so far: 57430.0
If we subtract 0 from 157, we get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Moving on to step 9:
870 goes into 1570 1 times with a remainder of 700.
Record the quotient 1 as the next digit in the result. 
Result so far: 57430.1
Subtract 870 from 1570 to get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Advancing to step 10:
If we divide 7000 by 870, we get 8 and a remainder of 40.
The next digit of our result is 8. 
Result so far: 57430.18
Subtracting 6960 from 7000 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
400 divided by 870 is 0 with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 57430.18
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 12:
870 can be fit into 4000 4 times, resulting in a remainder of 520.
Put 4 as the next digit of the answer. 
Result so far: 57430.1804
Deduct 3480 from 4000 and we're left with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Going ahead to step 13:
870 can be fit into 5200 5 times, resulting in a remainder of 850.
Write down 5 as next digit of the result. 
Result so far: 57430.18045
If we subtract 4350 from 5200, we get 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Advancing to step 14:
870 can be fit into 8500 9 times, resulting in a remainder of 670.
The number 9 becomes the next digit in our result. 
Result so far: 57430.180459
If we take 7830 away from 8500, we end up with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

On to step 15:
If we divide 6700 by 870, we get 7 and a remainder of 610.
Record the quotient 7 as the next digit in the result. 
Result so far: 57430.1804597
If we subtract 6090 from 6700, we get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Step 16:
The number 870 fits into 6100 7 times, leaving a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 57430.18045977
If we subtract 6090 from 6100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 57430.18045977, with a leftover of 1e-08.