We look at the division of 53494921 by 866 
We want to divide 53494921 by 866.

Let's proceed to step 1:
The number 866 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 866

Let's proceed to step 2:
866 can be fit into 53 0 times, resulting in a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Fetch the next digit (4) from the dividend, attach it to 53 and continue: 534 / 866

Going ahead to step 3:
If we divide 534 by 866, we get 0 and a remainder of 534.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 534, we end up with 534.
Grab the next digit (9) from the dividend, add it to 534, then carry on: 5349 / 866

Let's proceed to step 4:
5349 divided by 866 is 6 with a remainder of 153.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 5196 from 5349 and we're left with 153.
Take the next digit (4) from the dividend and append it to 153, then repeat: 1534 / 866

Step 5:
1534 divided by 866 is 1 with a remainder of 668.
The next digit of our result is 1. 
Result so far: 61.0
If we take 866 away from 1534, we end up with 668.
Include the next digit (9) from the dividend after 668, then repeat: 6689 / 866

Advancing to step 6:
866 can be fit into 6689 7 times, resulting in a remainder of 627.
Write down 7 as next digit of the result. 
Result so far: 617.0
If we subtract 6062 from 6689, we get 627.
Include the next digit (2) from the dividend after 627, then repeat: 6272 / 866

On to step 7:
If we divide 6272 by 866, we get 7 and a remainder of 210.
Write down 7 as next digit of the result. 
Result so far: 6177.0
Subtract 6062 from 6272 to get 210.
Grab the next digit (1) from the dividend, add it to 210, then carry on: 2101 / 866

Advancing to step 8:
2101 divided by 866 is 2 with a remainder of 369.
The number 2 becomes the next digit in our result. 
Result so far: 61772.0
If we take 1732 away from 2101, we end up with 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Let's proceed to step 9:
3690 divided by 866 is 4 with a remainder of 226.
Put 4 as the next digit of the answer. 
Result so far: 61772.4
If we take 3464 away from 3690, we end up with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Moving on to step 10:
If we divide 2260 by 866, we get 2 and a remainder of 528.
Record the quotient 2 as the next digit in the result. 
Result so far: 61772.42
If we subtract 1732 from 2260, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Moving on to step 11:
5280 divided by 866 is 6 with a remainder of 84.
The next digit of our result is 6. 
Result so far: 61772.426
Subtracting 5196 from 5280 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 12:
866 can be fit into 840 0 times, resulting in a remainder of 840.
The number 0 becomes the next digit in our result. 
Result so far: 61772.426
Subtract 0 from 840 to get 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Moving on to step 13:
866 goes into 8400 9 times with a remainder of 606.
Put 9 as the next digit of the answer. 
Result so far: 61772.42609
If we subtract 7794 from 8400, we get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Step 14:
When dividing 6060 by 866, we get 6 with a remainder of 864.
The next digit of our result is 6. 
Result so far: 61772.426096
If we take 5196 away from 6060, we end up with 864.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8640, and continue the process.

Step 15:
8640 divided by 866 is 9 with a remainder of 846.
Record the quotient 9 as the next digit in the result. 
Result so far: 61772.4260969
Deduct 7794 from 8640 and we're left with 846.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8460, and continue the process.

Going ahead to step 16:
8460 divided by 866 is 9 with a remainder of 666.
The number 9 becomes the next digit in our result. 
Result so far: 61772.42609699
If we subtract 7794 from 8460, we get 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

The quotient of the division is 61772.42609699, and the remainder is 6.66e-07.