52438634 ÷ 866 
We're looking to find how many times 866 goes into 52438634.

Moving on to step 1:
When dividing 5 by 866, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 866

Going ahead to step 2:
If we divide 52 by 866, we get 0 and a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Take the next digit (4) from the dividend and append it to 52, then repeat: 524 / 866

Moving on to step 3:
866 can be fit into 524 0 times, resulting in a remainder of 524.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 524 leaves us with 524.
Bring next digit (3) of the dividend behind the 524 and repeat the process: 5243 / 866

On to step 4:
If we divide 5243 by 866, we get 6 and a remainder of 47.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 5196 from 5243 to get 47.
Append the next digit (8) from the dividend to 47 and continue with: 478 / 866

Going ahead to step 5:
When dividing 478 by 866, we get 0 with a remainder of 478.
Use 0 as the next digit of our solution. 
Result so far: 60.0
Subtract 0 from 478 to get 478.
Fetch the next digit (6) from the dividend, attach it to 478 and continue: 4786 / 866

On to step 6:
The number 866 fits into 4786 5 times, leaving a remainder of 456.
Use 5 as the next digit of our solution. 
Result so far: 605.0
If we take 4330 away from 4786, we end up with 456.
Bring next digit (3) of the dividend behind the 456 and repeat the process: 4563 / 866

Going ahead to step 7:
The number 866 fits into 4563 5 times, leaving a remainder of 233.
Put 5 as the next digit of the answer. 
Result so far: 6055.0
If we take 4330 away from 4563, we end up with 233.
Fetch the next digit (4) from the dividend, attach it to 233 and continue: 2334 / 866

Step 8:
866 goes into 2334 2 times with a remainder of 602.
Use 2 as the next digit of our solution. 
Result so far: 60552.0
Subtract 1732 from 2334 to get 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Step 9:
The number 866 fits into 6020 6 times, leaving a remainder of 824.
Record the quotient 6 as the next digit in the result. 
Result so far: 60552.6
Subtracting 5196 from 6020 leaves us with 824.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8240, and continue the process.

On to step 10:
866 goes into 8240 9 times with a remainder of 446.
The number 9 becomes the next digit in our result. 
Result so far: 60552.69
If we take 7794 away from 8240, we end up with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

On to step 11:
866 goes into 4460 5 times with a remainder of 130.
Use 5 as the next digit of our solution. 
Result so far: 60552.695
Deduct 4330 from 4460 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 12:
The number 866 fits into 1300 1 times, leaving a remainder of 434.
Use 1 as the next digit of our solution. 
Result so far: 60552.6951
Subtracting 866 from 1300 leaves us with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

On to step 13:
When dividing 4340 by 866, we get 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 60552.69515
The remainder is 10 after subtracting 4330 from 4340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 14:
The number 866 fits into 100 0 times, leaving a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 60552.69515
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 15:
If we divide 1000 by 866, we get 1 and a remainder of 134.
Record the quotient 1 as the next digit in the result. 
Result so far: 60552.6951501
If we take 866 away from 1000, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Advancing to step 16:
1340 divided by 866 is 1 with a remainder of 474.
Record the quotient 1 as the next digit in the result. 
Result so far: 60552.69515011
If we subtract 866 from 1340, we get 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

After the division, we end up with 60552.69515011 and a remainder of 4.74e-07.