693640 ÷ 40 
We're looking to find how many times 40 goes into 693640.

Going ahead to step 1:
If we divide 6 by 40, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 40

Moving on to step 2:
When dividing 69 by 40, we get 1 with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 40 from 69 and we're left with 29.
Take the next digit (3) from the dividend and append it to 29, then repeat: 293 / 40

Step 3:
If we divide 293 by 40, we get 7 and a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtracting 280 from 293 leaves us with 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 40

On to step 4:
The number 40 fits into 136 3 times, leaving a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 173.0
Subtract 120 from 136 to get 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 40

Moving on to step 5:
40 can be fit into 164 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 1734.0
If we subtract 160 from 164, we get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 40

Step 6:
If we divide 40 by 40, we get 1 and a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 17341.0
Subtracting 40 from 40 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
40 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 17341.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
The number 40 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 17341.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 17341.0 and a remainder of 0.0.