49749768 ÷ 858 
We want to figure out the number of times 49749768 can be divided by 858.

Moving on to step 1:
858 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 858

Let's proceed to step 2:
If we divide 49 by 858, we get 0 and a remainder of 49.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 49 after subtracting 0 from 49.
Append the next digit (7) from the dividend to 49 and continue with: 497 / 858

Step 3:
The number 858 fits into 497 0 times, leaving a remainder of 497.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 497 to get 497.
Fetch the next digit (4) from the dividend, attach it to 497 and continue: 4974 / 858

Advancing to step 4:
If we divide 4974 by 858, we get 5 and a remainder of 684.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 684 after subtracting 4290 from 4974.
Take the next digit (9) from the dividend and append it to 684, then repeat: 6849 / 858

On to step 5:
6849 divided by 858 is 7 with a remainder of 843.
The next digit of our result is 7. 
Result so far: 57.0
Deduct 6006 from 6849 and we're left with 843.
Take the next digit (7) from the dividend and append it to 843, then repeat: 8437 / 858

Moving on to step 6:
858 goes into 8437 9 times with a remainder of 715.
The next digit of our result is 9. 
Result so far: 579.0
Deduct 7722 from 8437 and we're left with 715.
Fetch the next digit (6) from the dividend, attach it to 715 and continue: 7156 / 858

Step 7:
If we divide 7156 by 858, we get 8 and a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 5798.0
If we take 6864 away from 7156, we end up with 292.
Bring next digit (8) of the dividend behind the 292 and repeat the process: 2928 / 858

Moving on to step 8:
2928 divided by 858 is 3 with a remainder of 354.
Put 3 as the next digit of the answer. 
Result so far: 57983.0
Subtract 2574 from 2928 to get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Advancing to step 9:
If we divide 3540 by 858, we get 4 and a remainder of 108.
The number 4 becomes the next digit in our result. 
Result so far: 57983.4
If we take 3432 away from 3540, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 10:
When dividing 1080 by 858, we get 1 with a remainder of 222.
Write down 1 as next digit of the result. 
Result so far: 57983.41
Subtract 858 from 1080 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Let's proceed to step 11:
858 can be fit into 2220 2 times, resulting in a remainder of 504.
Put 2 as the next digit of the answer. 
Result so far: 57983.412
Subtract 1716 from 2220 to get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Let's proceed to step 12:
5040 divided by 858 is 5 with a remainder of 750.
Use 5 as the next digit of our solution. 
Result so far: 57983.4125
The remainder is 750 after subtracting 4290 from 5040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Let's proceed to step 13:
When dividing 7500 by 858, we get 8 with a remainder of 636.
Record the quotient 8 as the next digit in the result. 
Result so far: 57983.41258
Subtracting 6864 from 7500 leaves us with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Let's proceed to step 14:
When dividing 6360 by 858, we get 7 with a remainder of 354.
Write down 7 as next digit of the result. 
Result so far: 57983.412587
The remainder is 354 after subtracting 6006 from 6360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Step 15:
If we divide 3540 by 858, we get 4 and a remainder of 108.
The next digit of our result is 4. 
Result so far: 57983.4125874
Subtract 3432 from 3540 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 16:
858 goes into 1080 1 times with a remainder of 222.
Put 1 as the next digit of the answer. 
Result so far: 57983.41258741
The remainder is 222 after subtracting 858 from 1080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

After the division, we end up with 57983.41258741 and a remainder of 2.22e-07.