Let's divide 45705987 by 390
We want to figure out the number of times 45705987 can be divided by 390.

Step 1:
If we divide 4 by 390, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 390

On to step 2:
The number 390 fits into 45 0 times, leaving a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Grab the next digit (7) from the dividend, add it to 45, then carry on: 457 / 390

Going ahead to step 3:
390 goes into 457 1 times with a remainder of 67.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 390 from 457 and we're left with 67.
Grab the next digit (0) from the dividend, add it to 67, then carry on: 670 / 390

Going ahead to step 4:
670 divided by 390 is 1 with a remainder of 280.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 390 from 670 to get 280.
Include the next digit (5) from the dividend after 280, then repeat: 2805 / 390

On to step 5:
390 goes into 2805 7 times with a remainder of 75.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
Subtracting 2730 from 2805 leaves us with 75.
Include the next digit (9) from the dividend after 75, then repeat: 759 / 390

On to step 6:
390 can be fit into 759 1 times, resulting in a remainder of 369.
The number 1 becomes the next digit in our result. 
Result so far: 1171.0
Subtract 390 from 759 to get 369.
Include the next digit (8) from the dividend after 369, then repeat: 3698 / 390

Step 7:
3698 divided by 390 is 9 with a remainder of 188.
Record the quotient 9 as the next digit in the result. 
Result so far: 11719.0
The remainder is 188 after subtracting 3510 from 3698.
Take the next digit (7) from the dividend and append it to 188, then repeat: 1887 / 390

Step 8:
The number 390 fits into 1887 4 times, leaving a remainder of 327.
Write down 4 as next digit of the result. 
Result so far: 117194.0
Subtracting 1560 from 1887 leaves us with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Going ahead to step 9:
390 can be fit into 3270 8 times, resulting in a remainder of 150.
Write down 8 as next digit of the result. 
Result so far: 117194.8
If we subtract 3120 from 3270, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 10:
The number 390 fits into 1500 3 times, leaving a remainder of 330.
The next digit of our result is 3. 
Result so far: 117194.83
Deduct 1170 from 1500 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 11:
When dividing 3300 by 390, we get 8 with a remainder of 180.
Put 8 as the next digit of the answer. 
Result so far: 117194.838
The remainder is 180 after subtracting 3120 from 3300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 12:
When dividing 1800 by 390, we get 4 with a remainder of 240.
Record the quotient 4 as the next digit in the result. 
Result so far: 117194.8384
If we take 1560 away from 1800, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 13:
390 goes into 2400 6 times with a remainder of 60.
The next digit of our result is 6. 
Result so far: 117194.83846
If we take 2340 away from 2400, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 14:
When dividing 600 by 390, we get 1 with a remainder of 210.
Put 1 as the next digit of the answer. 
Result so far: 117194.838461
If we take 390 away from 600, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 15:
390 can be fit into 2100 5 times, resulting in a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 117194.8384615
If we take 1950 away from 2100, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 16:
When dividing 1500 by 390, we get 3 with a remainder of 330.
Put 3 as the next digit of the answer. 
Result so far: 117194.83846153
If we subtract 1170 from 1500, we get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

The final result is 117194.83846153 with a remainder of 3.3e-07.