We look at the division of 45337286 by 870 
We want to figure out the number of times 45337286 can be divided by 870.

On to step 1:
The number 870 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 870

Step 2:
870 goes into 45 0 times with a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Append the next digit (3) from the dividend to 45 and continue with: 453 / 870

Advancing to step 3:
If we divide 453 by 870, we get 0 and a remainder of 453.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 453, we end up with 453.
Take the next digit (3) from the dividend and append it to 453, then repeat: 4533 / 870

Let's proceed to step 4:
870 can be fit into 4533 5 times, resulting in a remainder of 183.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 4350 from 4533, we get 183.
Append the next digit (7) from the dividend to 183 and continue with: 1837 / 870

Advancing to step 5:
When dividing 1837 by 870, we get 2 with a remainder of 97.
Use 2 as the next digit of our solution. 
Result so far: 52.0
Subtracting 1740 from 1837 leaves us with 97.
Include the next digit (2) from the dividend after 97, then repeat: 972 / 870

Let's proceed to step 6:
If we divide 972 by 870, we get 1 and a remainder of 102.
Record the quotient 1 as the next digit in the result. 
Result so far: 521.0
The remainder is 102 after subtracting 870 from 972.
Include the next digit (8) from the dividend after 102, then repeat: 1028 / 870

Moving on to step 7:
1028 divided by 870 is 1 with a remainder of 158.
Put 1 as the next digit of the answer. 
Result so far: 5211.0
If we take 870 away from 1028, we end up with 158.
Append the next digit (6) from the dividend to 158 and continue with: 1586 / 870

Step 8:
The number 870 fits into 1586 1 times, leaving a remainder of 716.
Record the quotient 1 as the next digit in the result. 
Result so far: 52111.0
If we subtract 870 from 1586, we get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Step 9:
The number 870 fits into 7160 8 times, leaving a remainder of 200.
The next digit of our result is 8. 
Result so far: 52111.8
Subtract 6960 from 7160 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 10:
If we divide 2000 by 870, we get 2 and a remainder of 260.
Record the quotient 2 as the next digit in the result. 
Result so far: 52111.82
If we take 1740 away from 2000, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 11:
The number 870 fits into 2600 2 times, leaving a remainder of 860.
Use 2 as the next digit of our solution. 
Result so far: 52111.822
Subtracting 1740 from 2600 leaves us with 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

The quotient of the division is 52111.822, and the remainder is 0.086.