402045 ÷ 39 
We're looking to find how many times 39 goes into 402045.

On to step 1:
If we divide 4 by 39, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 39

On to step 2:
When dividing 40 by 39, we get 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 39 from 40 to get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 39

On to step 3:
39 can be fit into 12 0 times, resulting in a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 12 leaves us with 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 39

Advancing to step 4:
39 can be fit into 120 3 times, resulting in a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 103.0
Subtracting 117 from 120 leaves us with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 39

Going ahead to step 5:
39 goes into 34 0 times with a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 1030.0
The remainder is 34 after subtracting 0 from 34.
Append the next digit (5) from the dividend to 34 and continue with: 345 / 39

Moving on to step 6:
When dividing 345 by 39, we get 8 with a remainder of 33.
Use 8 as the next digit of our solution. 
Result so far: 10308.0
If we take 312 away from 345, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 7:
39 goes into 330 8 times with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 10308.8
Subtracting 312 from 330 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 8:
When dividing 180 by 39, we get 4 with a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 10308.84
Subtract 156 from 180 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
240 divided by 39 is 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 10308.846
Subtracting 234 from 240 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 10:
If we divide 60 by 39, we get 1 and a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 10308.8461
Subtracting 39 from 60 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 11:
When dividing 210 by 39, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 10308.84615
Subtract 195 from 210 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 12:
150 divided by 39 is 3 with a remainder of 33.
Write down 3 as next digit of the result. 
Result so far: 10308.846153
If we subtract 117 from 150, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 13:
The number 39 fits into 330 8 times, leaving a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 10308.8461538
The remainder is 18 after subtracting 312 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 14:
180 divided by 39 is 4 with a remainder of 24.
The next digit of our result is 4. 
Result so far: 10308.84615384
Subtracting 156 from 180 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The quotient of the division is 10308.84615384, and the remainder is 2.4e-08.