69987549 ÷ 420 
We want to figure out the number of times 69987549 can be divided by 420.

Step 1:
The number 420 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 420

On to step 2:
420 can be fit into 69 0 times, resulting in a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 69 after subtracting 0 from 69.
Include the next digit (9) from the dividend after 69, then repeat: 699 / 420

Moving on to step 3:
The number 420 fits into 699 1 times, leaving a remainder of 279.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 420 from 699 leaves us with 279.
Grab the next digit (8) from the dividend, add it to 279, then carry on: 2798 / 420

Let's proceed to step 4:
420 can be fit into 2798 6 times, resulting in a remainder of 278.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we subtract 2520 from 2798, we get 278.
Fetch the next digit (7) from the dividend, attach it to 278 and continue: 2787 / 420

On to step 5:
2787 divided by 420 is 6 with a remainder of 267.
Write down 6 as next digit of the result. 
Result so far: 166.0
Subtract 2520 from 2787 to get 267.
Append the next digit (5) from the dividend to 267 and continue with: 2675 / 420

Moving on to step 6:
420 goes into 2675 6 times with a remainder of 155.
Write down 6 as next digit of the result. 
Result so far: 1666.0
Deduct 2520 from 2675 and we're left with 155.
Take the next digit (4) from the dividend and append it to 155, then repeat: 1554 / 420

Step 7:
420 can be fit into 1554 3 times, resulting in a remainder of 294.
The next digit of our result is 3. 
Result so far: 16663.0
The remainder is 294 after subtracting 1260 from 1554.
Bring next digit (9) of the dividend behind the 294 and repeat the process: 2949 / 420

On to step 8:
If we divide 2949 by 420, we get 7 and a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 166637.0
Subtract 2940 from 2949 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
420 can be fit into 90 0 times, resulting in a remainder of 90.
The next digit of our result is 0. 
Result so far: 166637.0
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 10:
420 goes into 900 2 times with a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 166637.02
If we subtract 840 from 900, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
When dividing 600 by 420, we get 1 with a remainder of 180.
Write down 1 as next digit of the result. 
Result so far: 166637.021
Subtracting 420 from 600 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 12:
1800 divided by 420 is 4 with a remainder of 120.
Record the quotient 4 as the next digit in the result. 
Result so far: 166637.0214
If we subtract 1680 from 1800, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 13:
If we divide 1200 by 420, we get 2 and a remainder of 360.
Record the quotient 2 as the next digit in the result. 
Result so far: 166637.02142
Subtracting 840 from 1200 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 14:
420 goes into 3600 8 times with a remainder of 240.
Put 8 as the next digit of the answer. 
Result so far: 166637.021428
If we take 3360 away from 3600, 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.

Let's proceed to step 15:
When dividing 2400 by 420, we get 5 with a remainder of 300.
The number 5 becomes the next digit in our result. 
Result so far: 166637.0214285
If we subtract 2100 from 2400, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 16:
420 goes into 3000 7 times with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 166637.02142857
Subtract 2940 from 3000 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Our division results in 166637.02142857 with a remaining 6e-08.